Linus Torvalds: you take a week-long swing at a problem you find annoying, fascinating, or both. The result enjoys staggering worldwide success in the ensuing decades, despite being clearly outclassed by some alternative from the GNU project that, pinky promise, is coming out any day now.
Grace Hopper: BEGIN a framework that powers critical government functions, AND has secretly saved America from mass destruction time and again, only to be dunked on by Reddit for trivial matters of syntax END.
John Carmack: Doom, but better-looking.
Brendan Eich: you take a week-long swing at a problem your employer finds commercially compelling. The result enjoys staggering worldwide success in the ensuing decades, despite being clearly outclassed by the prior art it was supposed to build on.