http://www.foundersatwork.com/steve-wozniak.html
> When I got done, I'm looking at these 2 floppies that look just the same. And I decided that I might have written onto the good one from the bad, and I did. So I had lost it all. I went back to my hotel room. I slept for a while. I got up about 10:00 a.m. or so. I sat down and, out of my head and my listings, recreated everything, got it working again, and we showed it at the show. It was a huge hit. Everybody was saying, "Oh my God, Apple has a floppy!" It just looked beautiful, plugged into a slot on our computer. We were able to say "run color math," and it just runs instantly. It was a change in time.
But the real eureka moment for me was the very first time I ever read data back. I wrote it on the floppy, which was easy, but read it back, got it right. I just died.