One night, Holden Forrest drew a wild idea on the back of his daughter's math homework: What if he could lower a house into the ground, as a way to escape oncoming wildfires? He couldn't shake this idea, so he started researching whether it's possible — and now, years later, he has a company called HiberTec, multiple patents, groundbreaking technology, and is raising money to build his first prototype. On this episode, Holden explains how to turn a big idea into a real business. You can learn more and invest in HiberTec at