WASM does let you choose between 32 and 64 bit floats. SIMD and threading are mentioned in the article as things that are being worked on now. GPU access is ab

WASM does let you choose between 32 and 64 bit floats. SIMD and threading are mentioned in the article as things that are being worked on now. GPU access is about browser APIs rather than being something tied to WASM. We have webgl now and it seems like there's more coming hopefully (https://github.com/gpuweb/gpuweb https://github.com/gpuweb/gpuweb). >and above all is simple enough that you can figure out why the compiler isn't performing the optimizations you expect. Reading WASM seems easier to me than reading real assembly, so double-checking a WASM compiler's output seems much easier than double-checking a native compiler's output. Of course it's on the compilers to support WASM well, but hopefully that simplicity aids them too.