This is a fair point. After 5 failed startups (you'd think id learn and give up) building products and velocity had never been an issue. "Selling" is the one

This is a fair point. After 5 failed startups (you'd think id learn and give up) building products and velocity had never been an issue. "Selling" is the one absolute North Star. Even if you built a feature-to-feature clone - as another commenter above pointed out - sales (or lack of it) has been the biggest differentiator.