> Also, a term I like to mention is that "instant = instant * 0.5". Meaning, if your code is fast enough that it doesn't affect the user experience in the end,

> Also, a term I like to mention is that "instant = instant * 0.5". Meaning, if your code is fast enough that it doesn't affect the user experience in the end, and feels "fast". Making it twice as fast has literally no impact. that makes the very flawed assumption that your program is the only one running on the computer. In practice even if your program does not appear slower, it uses more battery, other software have less CPU time, etc etc