The sad truth is that you’ll never know the answer to this question…and, to be honest, the answer to “how many customers do we need to talk to” is about the same as the Supreme Court definition of pornography…”you’ll know it when you see it.”
Two quick anecdotes tell the tale:
Tale One: Four customers are occasionally enough! One startup team I worked with in the warehouse automation industry made a grand total of four customer discovery calls and called me saying, “Professor, what do we do now? You told us to talk to 50 customers and we've heard...
