Not intrigued at all by any of today’s fuss, tbh.
I'm completely sold on the shockingly old idea of capability based security. I'd love to never have to run a virus scanner ever again.
I'm hopeful that bipolaron chain ultraconductors actually work, and it's possible to have room temperature conductors that are 10,000,000 times better than silver, grown from urethane. You could make some really good 3d printed motors if this works out.
CNC machining and 3d printing are amazing to me. New stuff all the time. I can't wait until we're able to sputter semiconductor onto an atomically flat surface, then build transistors one at a time on it in a home fab.
Software defined radio (SDR) is amazing stuff. I can't believe how much you can do with $100 of hardware and a bit of code.
I'm hopeful that Mike McCulloch's ideas about quantized inertia[1] turn out to be close enough to right to build some reactionless thrusters.
Also VR/AR/mixed reality. Looking forward to a true mixed reality operating system with 3d widgets and 3d applications that interact with each other and your environment.
Also things like AI text-to-video in the next few years will probably get vastly more useful.
Artificial Intelligence
Biohacking / Bioengineering / Biomaterials / etc.
Fusion
Materials Science