In 1504, the city of Florence did something almost unimaginable: it put Leonardo da Vinci and Michelangelo in the same room and commissioned each of them to paint a giant battle scene on opposite walls, facing each other, for the rest of history to compare directly.

It was the closest thing the Renaissance had to a heavyweight title fight. Da Vinci got the east wall for his Battle of Anghiari. Michelangelo got the west wall for his Battle of Cascina. Every artist in Florence knew exactly what was happening — the two greatest painters alive, going head to head, permanently, in public.

Neither one finished.

Da Vinci actually started painting, but got impatient with the slow, unforgiving pace of traditional fresco technique and decided to experiment with an oil-and-tempera mixture instead — untested at that scale, on that wall. The paint began running and deteriorating almost as soon as it went up. He eventually abandoned the piece entirely.

Michelangelo never even got that far. He finished his preparatory sketches — reportedly stunning ones, admired for years afterward — but before he could start painting, Pope Julius II summoned him to Rome for a bigger, more prestigious commission. He left Florence and never came back to finish the wall.

Decades later, both unfinished walls were painted over completely. Today, neither original work survives — only copies of copies, made by other artists from the sketches and the brief window when fragments were visible.

Here's what's easy to miss in this story: neither artist failed for lack of talent, and neither failed because the competition wasn't motivating enough. If anything, the stakes were about as high as they could get. What actually ended both projects were two very ordinary, very human things — da Vinci got seduced by a shiny new technique before it was proven, and Michelangelo got pulled away by a shinier opportunity before finishing the one in front of him.

The lesson isn't "competition brings out your best work" — this is a pretty direct counterexample. It's narrower and less flattering: even history's greatest talents, under maximum stakes and public attention, can still lose a finished project to either untested novelty or a better-looking distraction. Motivation and talent were never the bottleneck. Follow-through was.

Whatever your own unfinished wall is right now, it's worth asking honestly which one is actually stalling it.