Watch the full Y Combinator talk on YouTube from Aug 29, 2018 here: https://youtu.be/0lJKucu6HJc
- Build a product so good, people spontaneously tell their friends about it.
- Build a product that is easy to explain in a few words.
- Identify a market that is going to grow every year.
- A real trend is one where the early adopters use it obsessively.