> I have to think if I want the `f` function to execute concurrently across all entries of the list, or one at a time: `for (const elem of list) { await f2(ele

> I have to think if I want the `f` function to execute concurrently across all entries of the list, or one at a time: `for (const elem of list) { await f2(elem) }`. I'd consider that a positive rather than a negative. That's an important question to think about (usually) and I want the type system to help remind me.