I think the point that this isn't a movie is the important one. I code for a living, and it isn't writing the program that's the time consuming part, its the debugging. Which means if you're lucky, and it works almost first time, you can make incredible progress, while at times its possible to hit problems that take anything ip to weeks to solve. There's a saying that if builders made buildings the way programmers write programs, the first woodpecker that came along would destroy civilisation. The counter-point to this is that if programmers wrote programs the way builders make buildings, all code would be a variant on "Hello World"!