It starts with an example of a slow program -- slow_program.py, "the program I will be using for demonstration purposes" -- but then it immediately forgets abou

It starts with an example of a slow program -- slow_program.py, "the program I will be using for demonstration purposes" -- but then it immediately forgets about that. It goes on to describe "general ideas and strategies, which when used, can make a huge impact on performance" -- none of which apply to the demonstration program.