At least some of the language features motivated by async are also useful in other places, e.g. RFCs 3425 and 2033 And the "bit more wasteful" part is a non-st

At least some of the language features motivated by async are also useful in other places, e.g. RFCs 3425 and 2033 And the "bit more wasteful" part is a non-starter because people want to use async in embedded contexts.