Starting with the problem.
As entrepreneurs, many times, we are in search of problems that can be solved by the solution we have in our minds. In the process, we end up wishfully inventing problems that might or might not exist.
The challenge, instead, is to leave the comfort zone and talk to people. The more people we talk to, the more real problems we will become aware of and the more chances are there that we would find some interesting ones worth solving.
When we start from the problem, the solution starts taking shape and it might or might not be what we had in our minds.