The programmers here will appreciate this video:
Bret Victor - Inventing on Principle
It's a long video, but you're sure to find something interesting in there.![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Bret Victor - Inventing on Principle
It's a long video, but you're sure to find something interesting in there.