Don't wait on a co-founder to start. @aliansarinik runs micro1, which makes training data and environments for AI labs. The company just announced $700M in ARR. "Just start the thing, get somebody to pay you something and learn." Once you're building, the right people show up. Co-founder or founding team, "whatever label you put on it." "It is so important to have an amazing founding team if you're a solo founder. But you shouldn't wait on a co-founder."