But that doesn't really answer my question, which is what can delaying IPO actually do for them? I agree that the bird can't fly but I don't see how it's going to fly in 18 months or 80 months and I don't see a way around that. Uber exists in a market with no barriers to entry (it destroyed them) and it can't run a profit. Kalanick himself has said Uber needs self-driving but I'm a skeptic on that as well. It's 20+ years before there's going to be real, safe cars without drivers. Kalanick is delaying the inevitable, investors are trying to cash out before the public realizes self-driving is vaporware.