HACKER Q&A
📣 ilmoi

What under-the-radar technology are you excited about?


Something that the world hasn't yet noticed but you think will be huge.


  👤 Robotbeat Accepted Answer ✓
1) Fiducials. This makes it so incredibly easy to map the physical world to the digital world, and vice versa. I guess it’s not under the radar, but it just feels like such a superpower. Sub pixel accurate 6dof tracking & unique identification for anything you want. It’s like a cheat code for computer vision as it makes the whole problem trivial. I half expect fiducials on all public streets within 10 years. On every Consumer product. All over the place, and some of them maybe invisible.

2) Custom silicon. Open source tools & decentralization of fab tech (by countries not wanting to be subject to international trade problems... as well as Moore’s Law slowing) are gonna make this like making a PCB.

3) Electric airplanes. With wings. “Drones” as VTVL electric helicopters have been big for a decade, but there are physical limitations to that approach. if you want to see the future, look at drone delivery in Rwanda by Zipline. But also, I think we’ll see passenger electric flight start small and from underserved regional airports sooner than you think, doing routes and speeds comparable to High Speed Rail (and with comparable efficiency) but much more granular and without massive infrastructure.

4) Small tunnels by The Boring Company and probably competitor companies with similar ideas. When you can build tunnels for one or two orders of magnitude cheaper than today, cheaper than an urban surface lane, then why NOT put it underground? And they’ll be for pedestrians, bikes, and small subways like the London Underground uses. Gets lot of hate from the Twitter Urbanist crowd, but what TBC has done for tunneling cost (on the order of $10 million per mile) is insanely important for how we think about infrastructure in the US.

5) Reusable launch technology. The world still doesn’t grok this. They will. It (long term) enables access to orbit comparable to really long distance airfare or air freight.

6) Geoengineering. I’m not happy about it, but it’s insanely cheap so... it’ll probably happen.


👤 jl6
Old tech.

New software development is 99% aimless churn.

We don’t need more new tech. We need better applications of old tech. There is so much software that works perfectly fine already. What’s missing is connecting it to real world problems.


👤 southerntofu
1. GNU Name System to replace the DNS in a backwards-compatible manner, with delegation to cryptographic public keys (instead of IP addresses) and with strong guarantees against known attacks against the DNS (DNSSEC doesn't solve everything). https://gnunet.org/en/gns.html

2. Semantic sysadmin to declare your intent in regards to your infrastructure no matter how it is implemented (i.e. with a standard specification, interoperability/migration becomes possible) https://ttm.sh/dVy.md

3. GUI/WebUI CMS for contributing to a shared versioned repository. Sort of what netlify is doing, but using a standard so you can use the client of your choice and we tech folks can hold onto our CLI while our less-techie friends can enjoy a great UI/UX for publishing articles to collective websites.

4. Structured shell for the masses. Powershell isn't the worst, but in my view nushell has a bright future ahead. For the people who don't need portability, it may well entirely replace bash, Python and perl for writing more maintainable and user-friendly shell scripts. https://nushell.sh/

5. A desktop environment toolkit that focuses on empowering to build more opinionated desktops while mutualizing the burden of maintenance of core components. Most desktop environments should have a common base/library (freedesktop?) where features/bugs can be dealt with once and for all and we don't have to reinvent the wheel every single time. Last week i learnt some DE folks want to fork the whole of GTK because it's becoming too opinionated for their usage, and GNOME is nowadays really bloated and buggy thanks to javascript hell. Can't we have a user-friendly desktop with solid foundations and customizability?


👤 ahstilde
Allergy immunotherapy. I started a company on the backs of this treatment.

The way we treat allergies today, with Zyrtec and Claritin, is medieval medicine. It doesn't solve the underlying problem; it just tries to cover it up.

Allergy immunotherapy is the future. Most people don't realize that allergies are now a curable disease. In the future, taking Claritin for allergies is going to seem like taking Tylenol for an ear infection. Why would you treat the symptoms when you could just cure the disease?

I started Wyndly (https://www.wyndly.com) to bring immunotherapy for pollen, pets, and dust across the USA. But we'll expand into food allergies soon, too.


👤 kroltan
Wikidata, SPARQL, and RDF in general. And I guess semi-relatedly things like Prolog? I recently decided to fiddle with Wikidata, and it is fascinating to be able to query for any part of a statement, not just the value!

In SPARQL you write statements in the form

      
But the cool part is that any of those three parts can be extracted, so you can ask things like "what are the cities in ", or "what country harbors the city ", but most importantly, "how does relate to ".

For example, if you wanted to find out all the historical monuments in state capitals of a country (using my home country as an example, also pseudocode for your time's sake):

    fetch ?monumentName, ?cityName given
    ?monument "is called" ?monumentName.
    ?monument "is located within" ?city.
    ?city "is capital of" ?state.
    ?city "is called" ?cityName.
    ?city "is located within" "Brazil".

👤 dang
Similar-but-different recent threads:

Ask HN: What novel tools are you using to write web sites/apps? - https://news.ycombinator.com/item?id=26693959 - April 2021 (320 comments)

Ask HN: What startup/technology is on your 'to watch' list? - https://news.ycombinator.com/item?id=25540583 - Dec 2020 (248 comments)


👤 fasteddie31003
Heat pumps and better insulation. It's magic how heat pumps pull heat out of thin air. I honestly think part of the reason they are not adopted as much is people can't understand them and don't trust them because of their ignorance. Insulation seems pretty boring until you start to realize how much energy can be saved by modern insulation.

👤 3arn0wl
I'm really excited, to the point of distraction by the RISC-V ISA.

Some people say that there's nothing new in it, but to my mind, they're missing the point : the Berkeley Four took what couldn't be appropriated for profit, and built a statement about what computing is... They revealed the Wizard of Oz to everyone, so that anyone with some computing background can build a processor, freely.

And now this freed wizard is working his magic, and will change the computing landscape irrevocably.


👤 frankus
Maybe not exactly under the radar, but when I was last doing professional EE/hardware/embedded work around the turn of the millennium, the software (EDA, compilers, CAD) and hardware (instrumentation, evaluation boards, PCB fabrication) were all super expensive, to the extent that they weren't really accessible to non financially-independent bootstrappers.

Sometime in the last two decades (and again, I'm probably super late to the party on this) it's become extremely affordable to dip one's toe into electronic hardware and embedded software. And not just at the "breadboarding something with an Arduino" level, but at the level of building small production runs of a product that people would actually pay money for.

In a way it reminds me of the mid-2000s era of web technology, where over the course of a few years you went from "putting expensive servers in a data center" to "filling out a web form" in order to host an app in a reasonably high-availability environment.

Or another way of looking at it, a lot of things that maybe you previously had to fund-raise for are now things you can bootstrap, and many things are cheap even by hobby standards.

That means for a lot of projects (for technical folks) you don't need to convince anyone else that your idea has merit, you can just build it and find out.


👤 Jamieee
https://ipfs.io/ seems pretty cool. I've been meaning to check it out, but not seen any uptake yet.

👤 JProthero
Muon-Catalyzed Fusion [1].

Briefly it's a genuine, and scientifically uncontroversial, form of 'cold' fusion enabled by muons — a more massive relative of the electron that was in the news recently thanks to the potentially interesting results coming out of the Muon g-2 experiment at Fermilab [2].

Like conventional 'hot' plasma fusion, in all experiments to date the energy input needed to sustain the process has exceeded the output, but it may be possible to use it to generate power. Unlike conventional fusion though, it receives relatively little attention, and there is no well-funded international effort to tackle the associated technical challenges. As with conventional fusion the technical challenges seem formidable, but it could be an interesting technology if a way could be found to make it work.

Listeners of Lex Fridman's podcast may recall that it was briefly mentioned in the episode he made last year with his father, Alexander Fridman, who is a plasma physicist [3]. As someone who has been interested in the idea for years and barely hears any mention of it, I was pleasantly surprised it came up.

It was also covered on the MinutePhysics YouTube channel in 2018 [4].

[1] https://en.wikipedia.org/wiki/Muon_catalyzed_fusion

[2] https://www.youtube.com/watch?v=O4Ko7NW2yQo

[3] https://www.youtube.com/watch?v=hNCz-8QIWuI

[4] https://www.youtube.com/watch?v=aDfB3gnxRhc

Bonus fact: Muon-Catalyzed fusion was first demonstrated by the Nobel laureate Luis Alvarez, who, with his geologist son Walter Alvarez, later proposed the 'Alvarez hypothesis' for the extinction of the dinosaurs by asteroid impact.


👤 rhindi
Homomorphic encryption, which enables you to process data without decrypting it. Would solve privacy / data security issues around sending data to be processed in the cloud

👤 MAXPOOL
Advances in computational chemistry and computational materials science. Specially using ML to speed up computation. Computational chemistry is already patchwork of different heuristic approaches. Graph neural networks and even some language models seem very promising addition.

If we could simulate and observe what happens with complex chemistry accurately, it would completely change the biology, medicine and materials science.


👤 michelpp
The GraphBLAS[1] is an amazing API and mathematical framework for building parallel graph algorithms using sparse matrix multiplication in the language of Linear Algebra.

There are Python and and MATLAB bindings, in fact MATLAB 2021a now uses SuiteSparse:GraphBLAS for sparse matrix multiplication (A*B) built-in.

[1] https://graphblas.github.io/


👤 brunoTbear
Absorbent panels for aircraft and angular design that prevents reflection of emitted waves.

Oh wait, that's under-the-radar technology.


👤 philip1209
https://paddle.com - it's like Stripe, but their "Reseller of record" means that they handle all sales tax / VAT issues. For most SaaS businesses it seems to reduce headaches a lot.

👤 elihu
ReBCO tape is interesting stuff. It's a high-temperature superconductor (high-temperature meaning still really cold, but you don't need liquid helium to get there) that can carry a lot of current before it stops being superconducting.

It's being used in new tokomak fusion reactor designs, like SPARC.

https://en.wikipedia.org/wiki/Rare-earth_barium_copper_oxide


👤 cl42
I recently came across Polymarket[1] and am really excited about what crypto has in store for prediction markets and insurance. I've dabbled in prediction markets over the years. I think they have a lot of promise but execution is always an issue. Using ETH to create a two-sided marketplace feels much better than having prediction markets decide what one can bet on.

More broadly, decentralizing insurance in this way would be very cool too... There's little difference, in my mind, between a prediction market predicting weather changes or elections, and insurance contracts around risk.

... and what's even cooler is: can we build bots and models to actually get an edge on these predictions? Imagine applying HFT strategies from stocks to predicting real-world events... Now it sounds like we can actually get good at forecasting difficult-to-predict human events, rather than just stock prices.

[1] https://polymarket.com/


👤 timdaub
- Native File System support coming to the browser: https://web.dev/file-system-access/

- jamstack.wtf

- federation-based networks

- CRDTs: https://josephg.com/blog/crdts-are-the-future/

- data-oriented programming paradigm (https://rugpullindex.com/ shameless plug)

- web components: https://docs.ficusjs.org/index.html


👤 drojas
Temporal Stores/Databases like Datomic (https://www.datomic.com/) and Crux (https://opencrux.com/). I can't stress enough how much pain they can lift from organizations building teams to "scale" in domains that by nature are tied to requirements about past knowledge like finance, healthcare, governance, audit systems, etc.

👤 robinwa
Hyperspectral imaging.

It reminds me of a Star Trek tricorder. Imagine having a camera where you can see easily ID greenhouse gases, quantify water/fat content in food, identify plant diseases, verify drug components, identify tumours, and measure blood oxygenation. On the machine vision side of things: it could probably outperform any conventional imaging + DNN combination, and you'd probably get pixel-wise segmentation for free while you're there.

There's been a lot of academic progress going on - it shouldn't be long until hyperspectral imaging makes its way into our lives.


👤 oftenwrong
https://darklang.com/

https://news.ycombinator.com/item?id=20985429

https://news.ycombinator.com/item?id=20394166

I think it's inevitable that darklang's vision will be achieved eventually, at least in part, whether by darklang or by other projects. We are already at the stage where you can define your infrastructure in code, and execute functions on managed "serverless" runtimes. It's not too much further to the point that cloud providers will build tightly integrated developer experiences that allow a developer to "just code" while handling all of the complexity that comes after. Within some large software companies, there is something close to this experience, but it hasn't yet been wrapped up and sold to the public.


👤 shostack
Developments in the AR/VR space. The haptics stuff coming out is really cool and may be consumer friendly in the near future. Meanwhile headset tech is seeing major investment and light field technology is going to do amazing things for this space.

👤 Darmody
I can't believe nobody mentioned new natural teeth growth.

No more ceramic implants, no more root canals. Grow new shiny and healthy teeth.


👤 abetusk
* FPGAs, and their associated FOSS stack to use them.

I haven't been able to really get into FPGAs but I'm optimistic about them. They're pretty clunky right now but I'm hoping they'll just get easier and more accessible.

If we want computation that we're able to verify as being secure, FPGAs are the closest I see us getting to it. There's also applications in terms of parallel computation that they can do over more traditional approaches.

This might go by the way of Transmeta or always remain niche but it seems like they have a lot of potential.

* Open Source Hardware, specifically relating to robotics

Electronics production is becoming cheaper and easier. Open source hardware has the potential to become as ubiquitous as open source software.

Electronics hardware is still way harder than it needs to be, so the progress is slow, but if we get within range of having an iteration cycle in electronics that's as fast as software development, we'll see spectacular innovation. Robotics especially, as that's a kind of straight forward physical manifestation of electronics that has a potentially large market.

There's a $5k fiber laser that can ablate copper. This could potentially fuel the next round of cottage industry board fab houses (in the US and other non-Chinese countries) and enable rapid turn around time. I wish I could justify the $5k to play around with it but it's just outside of my price range.

* Solar

I'm not really sure if this is 'under-the-radar' but for the first time, solar has become cheaper than coal. This means besides giving a moral incentive for people to use solar, there's now an economic one, which means the transition will most likely be broad.

Coupled with battery technology advances, this could have drastic impacts on the ubiquity and cost of power. I wonder if we'll see a kind of "energy internet" where people will create their own distributed electrified infrastructure.


👤 andy99
Uncertainty quantification and OOD detection in machine learning. It's on some people's radar, but has the potential to get ML adopted much more widely as people understand what it is actually really good at, and stop giving it things to do that it's bad at.

For a great recent example that get at some of this, see "Does Your Dermatology Classifier Know What It Doesn't Know? Detecting the Long-Tail of Unseen Conditions" - https://arxiv.org/abs/2104.03829

I'm not affiliated with this work but I am building a company in this area (because I'm excited). Company is in my profile.


👤 awb
Training AI on CPUs faster than on GPUs (SLIDE):

https://techxplore.com/news/2021-04-rice-intel-optimize-ai-c...


👤 holoduke
1. Cost per kg for orbital payloads. Soon every company can send payload to space. In 10 years from now we will have 50 launches every day. The sky will contain at least 100 times more satelites than today. every single square cm on earth has connectivity to the great web. And not a single part is invisible or unmonitored.

2. VR and AR In 10 years from now when hardware is capable of displaying 16k per eye in a casual lightweight not bigger than regular sunglasses devices. Everyone will be wearing one making all mobilephones obsolete. Every object, animal or human you watch at will be argumented. It will be the greatest new technological impact since the rise of mobile phones. Changing the live of human being so dramatically


👤 mikewarot
1) Capability Based Security - Makes it possible to have actually secure computers, and return the fun to computing by allowing experimentation without fear.

2) Reconfigurable computing - The power of the FPGA without the hassle, a homogeneous lattice of computing nodes as small as single bits allows for fault tolerance, almost unlimited scaling, and perfect security. It offers the power of custom silicon without the grief.

3) Magnetic core logic, initially realized when transistors still weren't reliable enough to build computers out of, may be making a comeback for extreme environments, such as that on Venus.

4) Reversible compilation - being able to work from source --> abstract syntax tree --> source in any language (with comments intact) will be a quite powerful way to refactor legacy codebases in relative safety.

5) Rich source / Literate Programming - embedding content in the program instead of having a ton of "resources" helps reduce the cognitive load of programming.


👤 joshlemer

👤 ruffrey
Narrowband IoT data service. Very low power, low bandwidth, cheap, with increasingly great coverage. It’s like an offshoot of LTE but classified as a 5G technology for massive numbers of low power internet connected devices.

👤 Dowwie
United Therapeutics is trying to "3D print" human kidneys. I pray that they succeed at this venture. It will be yet another world-changing endeavor for Rothblatt. If you aren't familiar with Martine Rothblatt, listen to this interview with Tim Ferriss: https://tim.blog/2020/12/16/martine-rothblatt/

👤 willvarfar
Data Hubs.

It’s queriable like a database but it doesn’t store your data - it proxies all your other databases and data lakes and stuff, and let’s you join between them.

Trino is a great example.


👤 rolivercoffee
Any grid energy storage technology. Whether it's small home units (smart batteries, vehicle to grid, hydrogen packs...) or huge grid scale (liquid air, gravity, liquid metal batteries...)

👤 anthonyskipper
IPFS and WASM - Combined they let you build apps that don't need a cloud provider, and can effectively be immortal.

👤 leeuw01
Materialize (https://materialize.com/). Although a bit known here, my coworkers never heard about it. I think it's going to be a game changer.

👤 csbartus
Javascript and Typescript replacements.

Started learning Clojure / ClojureScript and keeping an eye on ML languages like ReScript and ReasonML.

I wish soon I'll be able to never write JS/TS code again.


👤 m_j_g
Dependent types and homotopy type theory for general purpose programming. I am definitely excited about it, but not really sure if those hopes will ever materialize as some useful (even in the limited scope) technology.

👤 aqme28
Fusion power.

I think traditional tokamaks are 5-10 years from positive power due to better superconductor tech. There is finally private investment in the space and it has been growing at an absolutely crazy pace.

I think in about 5 years there is going to be a fusion power gold rush.


👤 pmdulaney
Electric cars and planes are going to be huge, of course. Increasingly batteries will be replaced by fuel cells, and the hydrogen that powers them will be produced by means of hydrolysis produced by sunlight.

https://phys.org/news/2021-04-hydrogen-fuel-machine-ultimate...

https://newatlas.com/energy/osu-turro-solar-spectrum-hydroge...

https://uh.edu/news-events/stories/2017/April/05152017Ren-Wa...


👤 KerryJones
Graphene -- generally has a bunch of uses that are not fully explored and I think it has a lot of potential.

Example company creating anti-COVID solutions with it: https://www.zengraphene.com/


👤 corebuffer
Yosys and open source FPGA toolchains. I think FPGA are vastly underrated and hard to use because of tooling and this is promising in changing it.

👤 iskander
High accuracy long read DNA sequencing. The new chemistry for Oxford Nanopore is getting close to where you can use it exclusively without polishing (down to ~1 in 100 base errors), and the price per gigabase has become competitive with Illumina (but with reads in the 10s or 100s of kilobases in lengths). On the other hand, PacBio HiFi reads are really reliably high accuracy and still long enough to resolve complex variants missed by Illumina, and only ~2x more expensive than ONT.

Both technologies totally redefine what we mean by "sequencing a genome" and open up broad categories of mutations that are completely invisible to more common forms of genotyping or sequencing.


👤 quickthrower2
I’m more excited by a mindset shift that might happen where people take their own security and privacy seriously, reject entities like Facebook and companies that provide convenient privacy and security for reasonable fees do well. Think social networks that people pay for making a comeback like friends reunited of yore.

Also anything that is multipurpose. Rope + tarp = shelter, sunshade, awning, hammock, sail, etc. One gadget cooks and chops etc.

Oh and household robots. Already have vacuum mopping and pool robot. Considering a lawn robot. Clothes folding can’t be far off right?

Siri is underrated in my circles, I hardly see anyone use it. Social anxiety of yelling at your phone?


👤 dchuk
This new crypto project just launched its mainnet a few weeks ago: https://chia.net

It's a novel "Proof of" algorithm (Proof of Space and Time) that front loads the resource needs into a Plotting phase, with a very efficient Farming phase after that to process blocks with transactions. Seems like a much more fair, sustainable model for having a secure digital currency.

It also has an interesting, Lisp based programming language on it.

But what excites me is that it's lead by Bram Cohen, the dude who invented BitTorrent, one of the best pieces of tech I've used nearly my whole tech life.


👤 ratsforhorses

👤 Balgair
1) Dr. Rafael G. González-Acuña's analytical solution on the Wasserman-Wolf problem

TLDR: We can now make lenses in any shape we please, not just with parabolas and circles (kinda).

Should have implications for anything that has to do with light: Telescopes, lasers, com-sats, AR/VR, etc.

https://gizmodo.com/a-mexican-physicist-solved-a-2-000-year-...

2) Memristors. We've not found a cheap and stable little component yet like the rest of the 2-lead elements, but it seems to be on the way (says every futurist)

TLDR: We'll be forced to re-do a lot of computer HW as the memristive ones will be (likely) much faster and cheaper on power. Think coin-cell batteries powering very good image recognition systems cheap as a dollar-store watch.

https://en.wikipedia.org/wiki/Memristor


👤 fsflover
Qubes OS, the desktop OS providing strong security through isolation: https://qubes-os.org.

👤 jayd16
I'm not sure this is exactly under the radar but I'm excited about wearable AR. No it doesn't look real but once you get past that we have some amazing tech on the horizon.

Microsoft and Oculus have hands free controls that actually work. Inside out tracking is progressing quickly. New UX patterns are getting forged.

I'm exited to see what we'll have in a few years time. In my mind its far more exciting than something like crypto but gets much less press.


👤 mperreux
The GET (Guaranteed Entrance Token) Protocol https://get-protocol.io/

The protocol offers blockchain-based smart ticketing which eliminates fraud and prevents scalping. This has the potential to get huge when events start coming back post-covid.


👤 thisispete
soil science influenced agriculture, watch 'kiss the ground' on netflix.


👤 kickout
Autonomous vehicles...for agriculture...

https://thinkingagriculture.io/the-agriculture-unicorn-hidin...


👤 joelg
Database applications of category theory!

👤 TimJRobinson
USDC and other cryptocurrencies that track real currencies. It for the first time allows anyone to be their own bank with programmable money. You can have it on your phone for direct to merchant payments. You can use software to setup auto payment systems for any bills or rent, you could connect it to a service that gives a loans on demand against collateral.

I think a lot of really cool innovation is going to come out of easily transmissible programmable money.


👤 AntonioL
Automated green farms - https://www.optimal.ag

👤 pkrotich
Decentralized Autonomous Organization (DAO) - I think future societies will benefit a lot from such organization.

👤 crawfordcomeaux
The application of computer science and uncertainty logic to create general human programming frameworks, possibly through applying category theory to neuroscience, psychology, daily life.

I'm the only one I know trying to do this. It's changed my life. I'm now applying my ideas in how to choose to lovingly coevolve with partner and the 2.5-year old we conceived. The results from this experiment are getting to the point that people are noticing. There exists a unifying spiritual path through my (mis?)application of category theory in my daily life. I am a noob at hacking the human and I'm saying that after having had major successes within this human body. I also recognize I'm doing way more than many people, so if I'm a noob, so are most-if-not-all people. The Buddha is an example of an elite hacker of the human.

Still waiting for people willing to take the first step, which is cultivating an ideal learning environment within oneself. This means learning to abandon judgments by default.


👤 Kanishk_Kumar
Trustchain.

This will replace Facebook, YouTube, Cloud, Google, Android, everything. (In a millennia or so. )

https://dl.acm.org/doi/pdf/10.1145/3428662.3429744


👤 jrnichols
maybe it's been a bit more noticed, but I am enjoying the Fediverse so far, especially peer tube. I think there's a lot of potential there.

now.. the race to see if we can fill it with normal stuff instead of letting conspiracy theorists and racists flood it.


👤 2OEH8eoCRo0
I'm bullish on Fusion energy.

👤 mindcrime
OK, to add my own answer, instead of just commnenting.

Ummm... to start with "what everybody else has already said." If I have anything to add it might be (and somebody might have said this already as well, and I just missed it)

Synthetic Biology - this entire field fascinates me, and I expect big things to come in the future when we can customize DNA and grow items we need, that are tailor made to various parameters. This is also the beginning plot-line to many horror novels and movies though, so "everything isn't rainbows and sunshine" as they say.

Nanotech - related to above, but as with synthetic biology, it fascinates me to think what we can do when we have atomic scale self-assembling machines.

AR/VR - maybe not "under the radar" anymore, but I think there's a ton of untapped potential in this space.

Semantic Web - Yes, I'm still a believer in the idea of RDF / SPARQL / etc. I've said enough about this in the past, so I'm not going to drill any deeper here.

AI - maybe more "AGI" than the ML stuff we have today that gets labeled "AI". And saying that is not an attempt to denigrate ML or any of the radical stuff going today. It's just that for as much as contemporary "AI" can do, I think there's a lot it still can't do, and I like to daydream about the potential of AI's that get closer and closer to (and exceed?) human abilities. See above about horror movie plots though. :-(

Fusion: this has definitely been mentioned already, but add me to the list of people who are hopeful/excited about the prospects.

Time Travel: Actually no. I kinda hope this is impossible. I have a feeling that if unrestricted "Doctor Who" like time travel was possible, causality would collapse and all of reality would just become a big, jumbled mess, incapable of supporting life.


👤 de6u99er
Nuclear fusion energy.

Green mobility concepts like: - self driving shared cars for first and last mile - self driving trains and busses for urban transportation - self driving high-speed trains and self flying airplanes for longer distances


👤 pmarreck
Elixir.

Yes, most of you have heard of it, but I think it is still very underrated.

Especially interesting is the ML libraries that have come out recently and OTP24 whose new JIT compiler gives a ~2x speed improvement to Elixir code, depending on the task.


👤 pedalpete
Neurotech - Sure there is all the stuff about BCI, but we're barely in control of our own brains ATM, so why are we using them to try to control a computer?

We've learned to optimize our bodies through nutrition and physical fitness (even if not everyone does it, we have the know how), but our brains are the next frontier.

I've seen lots of snake oil in this space so far, I was going to link to Halo Neuro, but they've been acquired by a tCDS company - from what I understand, the technology isn't ready yet.

We're building a sleep headband that monitors your sleep state, and uses sound to improve your Sleep Performance -https://soundmind.co

Others in this space are Emotiv and Muse, Dreem


👤 jnsaff2
Passivhaus. Rust (performance == energy efficiency). EV conversions (hybrid drivetrain to replace an ICE). Electromobility in a wider sense. Heat pumps (not so much under the radar anymore tho).

👤 ratsforhorses

👤 arriu
Alright, I'll bite.

We're probably going to see a wave of disruptions from technologies like GPT3.

For example, we might see something like this in the long term:

A) Someone will create a model to accurately convert low level source code to higher level source code that does the same thing when compiled down. Think assembly / machine code to high level code or even English descriptions of the underlying semantics.

B) At this point, why not pipe in some DNA/RNA into the model from A) to get high level insights

C) Give it a couple iterations and it might be possible to create a compiler. For example... C to RNA

D) Finally... solve problems by creating sequences from scratch instead of re-using bits from mother nature

If we ever do get to D), I sure hope no country tries to use this in a terrible way...


👤 JimmyRuska
RDFox, a semantic/graph database with incremental reasoning.

👤 momentmaker
- oracles for blockchain -

Blockchains are secure systems because they're isolated systems. But smart contracts aren't very exciting without data from the real world. Oracles are the bridges to supply data from the real world to the blockchain world.

However, a system is only as strong as its weakest link. You'd want the same security guarantees as what blockchain can provide. So the blockchain needs to "trust" oracles to deliver the correct data that's immune to manipulations.

With the rise of smart contracts and full automations, I think oracles will play a huge role in all of this.

The leading project that's working on this is Chainlink.


👤 JSeymourATL
E-Waste Recycling, Biorefining precious metals > https://www.mint.bio/

👤 2snakes
Biotechnology like Elysium Basis and Matter. Healthy aging longer makes a big difference for things like investments and working longer while healthy.

👤 tootie
Gaze tracking. There are retail solutions that are easy to use and highly accurate. It's a very low-friction way to do hands free interactivity.

👤 sahaskatta
https://tryfinch.com

It's an API for Payroll. The number of use cases is pretty amazing!


👤 thrwn_frthr_awy
3D Printing.

I believe 3D printing will change the world in less than twenty years. We currently in the hobby-est stage–think home computers in the later 70's early eighties. It took a company to see the potential and package it up for anyone to use. I think there will be a breakthrough home 3D printer that will start whole new industries. You will be able to buy physical products direct from anyone. Anyone can design and sell a vase or a bowl or a boomerang because manufacturing and distribution are no longer barriers to market. Think of when music and video moved from mostly only possible with studios to being able to record at a studio to home recording. Anyways... I'm super excited.


👤 sunstone
Starlink has the potential to revolutionize and enable a number of new technologies. Let's say urban electric planes for one.

👤 johnx123-up
IMHO, it is Restya Core. (Disclosure: I'm on their private beta.) It can eat the market of Jira, Slack and Asana.

👤 ludsan
Perovskite for cheaper/more-efficient solar cells. Liquid metal batteries (a la Ambri) for grid-scale storage.

👤 siruva07
Atmospheric Water Generators

👤 villgax
RADAR base home security, co-ordinated cameras zooming in & stuff.

👤 Maven911
Holographic displays

Alternative data especially for investment decisions


👤 nojito
Hydrogen cars and autonomous delivery.

👤 pmurt7
IPFS

👤 DougN7
Better cryptocurrency Chia

👤 carlsborg
Neuromorphic computing

👤 krylon299
for me, its https://qloppi.com

👤 sebslomski
NativeScript ;-)

👤 helsinki
helium.com

👤 silasb
dapr.io

👤 DreamScatter
Geometric algebra, which i implemented in software in Julia: Grassmann.jl https://github.com/chakravala/Grassmann.jl

In the future, geometric algebra will likely be part of everything we do, but it is still very unknown as of now.


👤 aaron695
Cheap, 4K, bigger than 24 inch monitors.

I think a lot of people are only allocated one monitor in most industries. This will change the way they work.

It will also change design.


👤 tubularhells
IoT smart spoons.

👤 marshmallow_12
www.store-dot.com perhaps.

👤 ChrisArchitect
Digital vaccine passports, as in the HealthIT that revolves around that space

👤 SubiculumCode
blockchain internet addresses?

👤 zarkov99
Elon Musk's Neuralink. The monkey demo is absolutely insane. The possibilities and the speed with which Neuralink progressed is breath-taking. This could be bigger than any of the other miracles Musk has performed.

👤 wyxuan
BCI - Brain Computer Interface. Sure it has received a lot of attention thanks to the work of Elon and neurallink, I still think that it hasn't received enough interest especially for how it'll affect all different parts of ours lives.

👤 bitcoinmonger
I think Bitcoin is genuinely exciting. I know it's not exactly "under-the-radar", but a lot of the discussion on HN is unfortunately only related to the price. It's a bit of a shame, but I can understand it's hard to see through the noise sometimes.

The fact that there isn't more discussion around the cryptography, networking, etc. suggests to me that many are still unfamiliar with the power of the underlying technology.