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There are a couple of different objections to this, though there is also a lot of support. The current state of it is "someone needs to write up an RFC."

If you want the full gory details: https://github.com/rust-lang/rust/pull/65875

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Well that's just the "simple primitive for 'block the current thread on this async call'", which can, with the new `Wake` trait, be written in around 10 lines of code. The real change would be adding an actual runtime to the standard library.

Potato, potato. Both involve adding some form of runtime, now we’re just negotiating details.

(I personally would like a very very simple one like the ten LOC version, but wouldn’t want anything more.)

Well the block_on runtime is only meant for testing or bridging sync and async code, so it wouldn't solve the problem :)

It solves my problem, which is why I like it as a solution (documentation, examples, and tests), haha!

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