Almost instantly after founder Rob McGinnis launched Prometheus on Y Combinator’s prestigious Hacker News site, the Silicon Valley tech community of engineers, scientists, and entrepreneurs descended with a barrage of questions. How feasible was the company’s tech? How would Prometheus execute on its bold aims to replace the more than 300 billion gallons of fossil fuels the world uses each year in time to avoid catastrophic warming? McGinnis was only too happy to step into the fray with detailed, technical answers.

Prometheus’s launch and the animated discussion it sparked ranked number one on Hacker News for two days straight. It was the second-most popular launch in the forum’s history.

Check out our Hacker News launch here.