Without wishing to appear negative, I do find it odd the way that a technical crowd react to these online demos. Would you have found this impressive if it was a compiled executable? Because this is just the same thing, just running slower because it's on the web. It's not technically novel in any way.
If you're curious about the algorithm, then take a look at the presentation 'Advanced Character Physics' by Jacobson. They were used in published games at least 13 years ago and are very widely known and implemented.
I get that there's some novelty to this stuff, but we already know that asm.js can achieve performance within a factor of 2 of compiled C code. Since we know that exists, I don't really see what's interesting about seeing each individual piece of code ported to work on the web.
If you're curious about the algorithm, then take a look at the presentation 'Advanced Character Physics' by Jacobson. They were used in published games at least 13 years ago and are very widely known and implemented.
I get that there's some novelty to this stuff, but we already know that asm.js can achieve performance within a factor of 2 of compiled C code. Since we know that exists, I don't really see what's interesting about seeing each individual piece of code ported to work on the web.