So why doesn't any major runtime run Java natively? Or C++ natively? Or Rust natively?
Why is this such a cool unlock that hasn't been done for any other language?
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85% of this are people tired/bored of Node.js.
TypeScript is entirely metadata, so it just doesn't make sense to need to compile it.
The java runtime runs java.
And C++ and Rust are compiled and have no runtime.
Java bytecode is compiled from Java (javac), Scala (scalac), etc
JS is the TS's bytecode but it has been designed to be a language to be developed in, which causes impedance mismatches as tools and people get confused about the usage context.