system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 : What changed that allowed SpaceX to go from crashing rockets on barges to a 3 for 3 success rate?
gpt
Every crash is a learning opportunity.

They weren't crashing because they didn't know WTF. There's a ton of very complicated stuff to work out to land a rocket, and getting it even a tiny bit wrong usually results in an explosion. Rockets don't really do rough landings. It's either perfect, or kaboom.

So every time they crashed one, they tweaked the next one a little, until eventually they found the winning setup.