Right, but I called the rules "useless" because it does not tell you any actionable info -- and this is normally expected of rules.
Here is a fixed version (note I added "times 20" at the end):
"the compiler generates better assembly code than a human could within the time it takes to write high-level code times 20"
See -- now I can make predictions. Let's say you have a function that you want to make fast, and you want to optimize it in assembly. The function took 30 minutes to write and debug. Do you have 10 hours to spare? Try assembly. No time? Leave as-is.
Here is a fixed version (note I added "times 20" at the end):
"the compiler generates better assembly code than a human could within the time it takes to write high-level code times 20"
See -- now I can make predictions. Let's say you have a function that you want to make fast, and you want to optimize it in assembly. The function took 30 minutes to write and debug. Do you have 10 hours to spare? Try assembly. No time? Leave as-is.
Much more useful this way, no?