system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can't we just create water? All we need are 3 atoms.

Isn't it simple? To somehow synthesize/combine two hydrogen atoms with an oxygen atom. This would solve the worlds water problem! Can't we do this with other stuff, like food or plants?
gpt
Yes it is that simple, all you do is take two parts hydrogen and one part oxygen set it on fire and BAM water (and a whole lot of heat).

Now just find a cheap way to get the hydrogen and you will have a Nobel Prize.