> an offline compiler like Clang can spend considerably more time to generate better code, whereas WebAssembly compilers must be fast enough to run online This

> an offline compiler like Clang can spend considerably more time to generate better code, whereas WebAssembly compilers must be fast enough to run online This echoes the arguments for / against java. The compiler in this context mustn’t be “fast enough to be online” - it must be fast enough to keep up and able to smart enough to know what’s important. It also benefits from watching the actual program execution. Presuming you can “warm up” the application, it might just do fine. I vaguely think that a lot of people are considering the compilation as a one time deal. It could be a phased thing. Java’s a great example of that.