The claim was he did this mostly while others weren't in the office. If you assume they work a straight 8 hours (and why would they at crunch time) that leaves

The claim was he did this mostly while others weren't in the office. If you assume they work a straight 8 hours (and why would they at crunch time) that leaves 14hrs/day to eat/sleep/work. 10/5 isn't so unreasonable approximation But hey, another way to look at it. 150,000/30 = 5000 lines/day. At 16 hrs/day, that is 312.5 lines/hour, or 5 lines/minute non-stop. Not killing myself, and leaving the typos in that wouldn't affect compilation, I generated the code below in 36 seconds; I knew what I was going to program ahead of time - there was no thinking involved. I honestly could have typed faster, but I also didn't want to type faster than I could sustain for 16 hours nonstop. I haven't had my coffee yet, so that is a factor. So that is right at the target rate. I don't think I could maintain that 16/7 for real problem. I'm going to have to stop to think, to look up things, to make mistakes, to write tests, to document. Unless we assume I am perfect, I'm going to have to spend time debugging. This is for a stupid Euclidian distance function, whereas the claim was it was difficult, critical code. And the claim is not 16/7, it is "before/after" office hours. import math def distance(x,y): """ compute striaght line distance between x and y""" return math.sqrt(x**2 + y**2)