Three founders. Full time jobs. Families. No investors. Ten months ago, we started building QueryPanel. At least, that is what it does today. Our first version could generate kind of good SQL and charts. Straightforward questions made it look impressive. Then we tried harder questions and it started failing. We had convinced ourselves that our system was better than the others. Real questions proved us wrong. That hurt. But it also forced us to stop polishing the demo and rethink the pro...