> I mean, in my life i probably spent hundreds of hours writing code and hacking things together - forcing them to work - for tasks that turned out to be...already solved, I just couldn't find it...it was under the sun all along.

Once you get older it gets even more annoying - sometimes you end up solving a problem, and later on you realize (or, even worse, a friend points it out) that you've solved that already once before a decade ago _and_ published your solution back then.