Background: computer programmer -> SiteAdvisor (McAfee) -> Hunch (eBay) -> angel investing -> a16z
Good ideas that look like bad ideas. PG blog post: Peter Thiel mentioned the sweet spot in the middle of good ideas & ideas that seem bad. Why? Good ideas that look like good ideas are already being worked on by big companies. Entrepreneurs are in the business of the leftovers.
High-profile historical examples: Google was very late to the search engine world in 1998 - search was dominated by large portals like Yahoo/Lycos/Excite who thought of search as a loss leader: real business was being a portal + having display ads everywhere. Stickiness was the key so you can show them more ads. Google was the opposite - was so good at showing them search results that they would leave the site immediately. Airbnb initially seemed to most people like a weird niche hipster activity, now seems like replacement to hotel industry. eBay was before modern online payments; seemed preposterous to send a check over the mail to buy something online.
How do you develop a good idea that looks like a bad idea? You need to know a secret - in the Peter Thiel sense: something you believe that most other people don't believe. How do you develop a secret?
When you develop a secret, it becomes frustrating talking to people about it because they can't see the problem that you see.
Characteristics of these ideas:
How I learned this secret: heard thousands of investment pitches; looked systematically at what the best predictor would be. Does the entrepreneur have technical expertise, problem/domain expertise or experience?
Two ways to develop startup ideas: through direct experience with tools/technologies, problems, perspectives; or through abstract things like analyst reports, trends, analogies (Airbnb for X, Uber for Y). The best ideas come through direct experience. The abstract things tend to be an encapsulation of conventional wisdom. When you diff your direct experience with conventional wisdom, that's where the best startup ideas come from.