Paul Graham: Design for “the person who has their finger poised over the back button” [clip] I admire how clearly Y Combinator-backed companies explain what they do. So in his Mixergy interview, I asked Paul Graham, the seed fund’s co-founder, about what he passes on to the startups he mentors. This part of my interview didn’t get enough attention, so I asked Joe (Mixergy’s new editor) to pull the