> Consider how many years the incandescent light bulb would have been delayed had Edison (or Swan or whoever you want to credit) had failed fast with the filaments.

But he did try a lot of different filament materials. It would've been really dumb to think he was going to somehow get cotton or whatever wrong material correct if he just stuck with it. Instead he had procedures and a framework to try a lot of candidates and iterate quickly.

I get this argument might not be exactly fair because I can twist it to nearly anything. But that's how maxims like "fail fast" or "haste makes waste" or "a stitch in time..." works. They still have value