Yeah, the best times are when your creation/program does something that you didn't expect in a good way. Oh shit, I didn't know it could do that too! Like when

Yeah, the best times are when your creation/program does something that you didn't expect in a good way. Oh shit, I didn't know it could do that too! Like when an initial design keeps being built upon and on and on, and it doesn't seem to need much reformulation in its conceptualization, only specific updates (partitioning/caching) to keep its performance scalable.