[amelius]

Ok, how well are things like multithreading currently supported on WASM? How about shared memory (e.g. for efficient immutable structural sharing)? And does WASM support special instructions (memory barrier instructions come to mind) that allows one to implement (say) a garbage collected runtime on top of it?

[marcosdumay]

The fact that it has a niche doesn't mean it's good for everything.