Not sure you're going to get an answer from someone more knowledgeable at this point, but from my understanding, the answer is "some." Obviously, the more users

Not sure you're going to get an answer from someone more knowledgeable at this point, but from my understanding, the answer is "some." Obviously, the more users the better. You have more traction and a bigger base to get feedback and improve your product. However, YC has still publicly stated that they do fund people based on an idea or MVP without any users, but you'll need a stronger founder profile / problem with unique perspective / MVP to compensate.