HTML rendering itself is already "fast enough." [...] rendering is already pretty much instantaneous on all modern browsers Strongly disagree. HTML rendering i

HTML rendering itself is already "fast enough." [...] rendering is already pretty much instantaneous on all modern browsers Strongly disagree. HTML rendering is terribly slow at certain things (especially in Firefox). Unfortunately they're the things our app's usability depends on, so we've had many struggles in this department. Anyone who's ever innocently accessed a DOM element's offsetLeft and wondered why their code got 100x slower will know what I mean. DOM rendering is so far from instantaneous that it's scandalous. But optimizing Javascript implementations for benchmarks is easier, sexier, and more fun, so that's where the energy has mostly been going. I'd say it's actually the JS's that are "fast enough" at this point, but of course different apps have different needs. Thank goodness Google have been pushing the envelope in every department with Chrome and not just one.