Comment by whizzter

1: Something like Figma could probably offload some of the memory pressure to GPU textures. (But they'd probably run into safety browser limits before that).

2: Most runtimes are 64bit already, A runtime detecting a wasm32 binary will just continue to generate code with the current JIT compiler whilst WASM64 will require another JIT (and perhaps memory system since WASM32 runtimes are often based on "hacks" where 4gb of address space is reserved but not given real memory so that the JIT compiler gets an easier job without security implications).