I've had the experience of getting completely stuck on a coding problem, wrecking my brain for 3 long work days.

When did I see the solution?

At the end of day 3 when I was cycling home, right at the moment I was crossing a very busy and dangerous road.

It's amazing how the mind works and you'll always remember that moment. This particular moment was 10 years ago.

Anyone else waking up at 3-4 AM and knowing exactly what 1 to change into a 0 or the other way around in 50K lines of code and suddenly getting things to work in the desired way? :D

Our brains are coding, compiling and testing in the background all the time. ;)