[untothebreach]

Thank you, that was much more eloquently put than I could have provided. Indeed, `sum` was the one common use case I could think of, so I didn't bother including it as an example. I honestly can't say I miss `reduce` at all when writing python.

[masklinn]

> Indeed, `sum` was the one common use case I could think of

There are 4 other not-completely-uncommon cases in the builtins, implemented in a significantly more efficient manner for the latter 2 (ignoring Python v C): min, max, any and all. And map and filter technically but repeatedly concatenating lists together (in python) isn't the most useful way to peg your CPU.