What are you interested in that the fewest others are interested in?

Collating a list of mysteriously murdered CEOs and high ranking engineers since 1998.

The death of this engineer for EarthLink at 18 (while he also studied at MIT) and which allegedly involved a religious cult based in Oregon, is a good place to start.

Only about 2.5% of suicides are jumping to ones death also (although the percentage is double for women, and this number is US suicides in 2018 keep in mind).

https://en.m.wikipedia.org/wiki/Philip_Gale

Not really sure, because my bubbles prevent me from understanding how many other people are interested in certain things outside them.

I guess the closest thing I could thing of is my interest / work in certain subsets of retro computing that I don’t typically see from other hobbyists.

I play around with retro telecom and networking stuff and designed (but haven’t yet built sadly) a user mode X.25 stack (along with a kernel version on Windows) and am working on a plan for some ISDN stuff for a custom “PBX” to bridge some old H.320 phones with modern WebRTC stuff. If I ever finish those, there’s a few other “retro” stuff I’d like to look into. I also play with more modern stuff, mostly imagining implementing an 802.11 controller (hopefully a 802.11bb one when released) and a custom DOCSIS modem.

Part of my problem with a lot of this stuff (and why I imagine I don’t see a lot of people doing it) is 1. I generally need a lot of expensive equipment to be able to designed labs for this stuff that I can’t always immediately (or ever) afford and 2. It requires knowledge from several separate and often complex fields. Also it’s a lot of work and time to invest in a niche interest solely out of curiosity.

I love neoclassical shred guitar, a la Yngwie Malmsteen, and it's many offshoots in the prog metal direction with bands like Sonata Arctica et al. The more classical influence, the better.

Pretty much my entire life was filled with friends who do not share my appreciation for it, and even the ones who did like it gave only a passing glance and only ever listened to it when I was around.

I hike off-trail, up creeks to see how far I can get and how close to the source I can get.

In general I find that each one is quite different and the activity reminds me of being a kid and exploring in such a way that everything is a new experience.

Fine tuning old and irrelevant carburetors that no one makes parts for anymore and having to ream little holes in brass tubes to get the mixture I want at different loads.

I don't know why I put myself through this, but I can say I'm one of the best Solex carburetor tuners in my area. I don't even have a shop, or work in the field at all.