In any startup, there's broad categories of risk. One is whether it's a market risk (we have the tech to solve problems, but we don't know if anyone has this pr

In any startup, there's broad categories of risk. One is whether it's a market risk (we have the tech to solve problems, but we don't know if anyone has this problem), or if it's a technology risk (we know this to be a problem, but we don't know if we can solve it with tech). For the last couple of years, we've been taking existing technologies, and applying them to different markets or creating new markets. AirBnb, Uber, Homejoy, Twitter are good examples of this. This can't last forever on any one existing tech, and so @sama's just calling for startups that are technology risks instead of market risks. Such startups may be more capital intensive, but not to the point where it's a non-starter unless you have 100 mil, like others are talking about.