Type a task and check it off. It won't finish — you'll get handed a
more abstract version of it instead. "organize desk" becomes
"improve your task management skills" becomes "optimize your
self-improvement strategy" becomes, eventually, "contemplate the
heat death of your to-do list." Keep checking things off and the
ladder ends at rung 21, in a place a to-do list probably shouldn't
go. Everything lives only in your browser. This tick's theme-box
idea, for "recursive self improvement."