Pathfinding
“Some simple arithmetic will show you how much time you’re spending on finding the path:
[The amount of time it took you to do it last time] minus [the amount of time it will take you next time]
“If you come up with something close to zero, then you’re running the path, doing it consistently and spending almost no time at all finding a path. You’ve already found one.”
” … Lots of people run paths. Very few have the guts to find a new one.”
http://sethgodin.typepad.com/seths_blog/2015/09/pathfinding.html