There's got to be a proper term for this - probably in German, since they have words for everything - but when I say it, you'll know what I'm talking about.
Limits, even artificial ones, foster innovation and creativity, and help our brains work... better?
I have a million examples I can think of.
Like how people are STILL making brand new Game Boy games, to this day, because the limitations of the hardware hone creative visions into a narrow laser-like focus.