Regrowing teeth
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Catgirls
and space adapted humans
Propulsion system for space adaptation? So high pressure farts?
If humans would still need to operate in atmosephere so: propellers with emergency high preassure farts
I would stay in relatively achievable things like a sugar fuel cell or microbial food production. Things we don't quite have yet but not do to the knowledge not being there.
I'd like to support solarpunk development. I just want to live a simple life, with high tech in cooperation with the environment. We need it badly. I would fund so many community libraries. Don't misunderstand me though. I still want space travel, but I no longer trust capitalists with it.
It's not really science fiction since there are scientists working on it right now, because capitalism is the brake of development. I would invest on photonic computer research, that would help advancement of society in all aspect.
I read an ieee paper a few years ago that went into why photonic computing failed and why it won't ever succeed.
The problem is that photons are fat compared to electrons so circuits couldn't be made as small as they are already today. When cmos was 500 nm and researchers weren't sure if things could be made smaller, photonics made sense. But now they're at 3nm process (yes it is a marketing label, but pitch is 24 nm ) . Visible light has a wavelength of 400nm. The wave function of a photon would smear across circuits that small.
Intel presented photonic data bus between chips couple of months ago so I don't think compute would be useful other than quantum stuff.
Curing aging.
That would leave the time to see all the other inventions to come. It would also cure age related diseases like Alzheimer's and Cancer.
Is Cancer age related? I thought it could happen to anyone. But much more likely to happen when your older.
Those machines that can make food instantly for sure. Put a few of those bad boys in the right place and we've solved world hunger. Also, healthy tasty food for those of us who can't cook and can't afford to eat at restaurants.
Granted, people in the restaurant would largely lose their job, but we can retrain them for something else like we did with stagecoach drivers, telephone operators and honest politicians before them ๐คท
FISH!
I'd say budget 3D printed meals are around the corner.
Proper gourmet replicated meals, 60yrs.
Replicators! Yes!!
Some restaurants probably will still exist as a premium option. And chefs can create recipes and sell them online.
They'll probably add DRM to it. Crap! ๐ฌ
Atomically Precise Manufacturing!
Might actually happen in the upcoming decades.
Van Neumann probes
How far off do you think we are from this becoming a reality?
One AGI breakthrough - so couple of years to never.
Imagine we send an AGI in a probe that can operate in 100-400K without oxygen or water or food or gravity, and not some brain in a flesh.
Doors that go "swish" when they open.
Make them open and close in a circular pattern like a camera aperture and I'm in