I'm not even sure how to explain this properly but I'll try. Built something for months completely alone. No team, no co-founder, nobody to reality check anything. Just me and whatever made sense in my head. Thought I understood the product deeply. Knew every corner of it. Could explain any decision I made and why. Put it in front of people last week for the first time. First guy spent maybe 90 seconds on it then pointed at a feature I had hidden three levels deep because I thought it wa...