Most companies that survive to become late stage, raising several and increasingly large multi-million dollar rounds, have found product market fit. Not all, bu

Most companies that survive to become late stage, raising several and increasingly large multi-million dollar rounds, have found product market fit. Not all, but most. In B2C, this is true almost by definition. So I think Sam's comments are appropriate. He is limiting the scope of his advice to growth-stage companies that found their fit. Obviously, that's a problem that one revisits. But on the rare occasion that you solve for product market fit, you need to tackle other problems like the ones he describes.