Feeling uninspired...

What are some technologies or breakthroughs of any kind in medicine, physics, optics, potentially computer science you'd like to see developed?

Already completed:
Tachyon generation/receiving
Fusion power
Cancer cure
Migraine cure
Purpose of sleep/function of dreams
Cause of Havana Syndrome
Using AI to delouse computer systems

So if it's something OTHER THAN this stuff, let me know and if it can't be done, I'll let you know straight out if possible, and if it's in the range of possibility I'll start working on it and we'll leave it in the usual place.