I absolutely agree that the virtual/green thread style is much better, more ergonomic, less likely to be correct, etc, but I can’t fault Rust’s choice, given it

I absolutely agree that the virtual/green thread style is much better, more ergonomic, less likely to be correct, etc, but I can’t fault Rust’s choice, given it being a low-level language without a fat runtime, making it possible to be called into from other runtimes. What the JVM does is simply not possible that way.