It's actually not a list of problems but list of technological tries to solve a problem, thus it has a 'hacker' in the name. There is nearly infinite amount of

It's actually not a list of problems but list of technological tries to solve a problem, thus it has a 'hacker' in the name. There is nearly infinite amount of problems all around the world of various levels of importance, shall they be reported and pinned here as well, like climate stuff, food/water pollution, health, etc. "untill somebody finds a way to solve it"?