Chris Dixon on a16z Frontier's investing philosophy, and why being too early is better than being too late: "We believe that basically every good idea that we've ever seen that involved technology has eventually worked or we believe will work, if it hasn't worked yet." "Almost everything that ended up working had a precursor that didn't work and maybe was 10 years too early. And that's the hardest thing in technology is to predict the timing of these things." "There's the technology, there's…