Certain modes of work are exhausting to the point of not being able to sleep, the mind is so wired.
Any conversation
I subscribe to the Tony Stark school of engineering. "Sometimes you have to run before you walk." Earlier this year, I built my own static site generator. I hate literally every static site generator out there (not joking). get-taxus.org
I'm doing experiments with short attention-span students and code. Starting with python, and, oddly, now working in BASIC. As a C programmer of 40+ years, I find this aesthetically and pedagogically displeasing, but I am delighted to see them getting fully absorbed in writing
130 PRINT "You have been eaten by a bear!" : GOTO 900. Yes there is spaghetti, but it's their spaghetti and they seem to take delight in debugging it. Python will come later. 
