I would like to tweak gravity, perhaps by season. Every time I fall, I am astonished again at how hard the ground is.

I'd want the Aurora Borealis to be more prevalent. And I would want there to be some natural human reaction to it, kind of like when you visit the ocean.

Myself, being left-handed, why not make left-handedness dominant over right-handedness? In baseball would first and third bases be switched? What if Einstein or da Vinci had been right-handed?

I would like a smoothie mix that would guarantee higher brain function like exponentially improved memory.
Would help me learn the ukelele chords to "Stairway to Heaven" much faster.
Or String Theory.

Excuse me. I posted this in the wrong place.