Related:<p>Paul Graham: "Almost all founders learn brutal lessons during the first year, but some learn them much more quickly. Obviously those founders are more likely to succeed. So it could be a useful heuristic to ask, say 6 to 12 months in, "Have we learned our brutal lesson yet?"" "The most common lesson is that customers don't want what you're making. The next most common is that it isn't possible to make it, or at least to make it profitably."<p>Can you make it? Will people want that? Will it make money?