Quote: "Firstly it's "close to the metal" -- if you compile for example an image-processing library to WebAssembly and run it, you'll get similar performance when compared to compiling it to x86-64 or ARMv8 or what have you."

Is WebAssembly now able to run it outside a web browser or this guy is just "inflating" results, to put it mildly and not call him a liar. Because last I checked, there is no world where a browser application is in similar performance with a native one.