Brennan Stark is the CEO and founder of Y Innovations and Scope Messenger. After graduating high school in 2017, he completed one semester at the University of Delaware before deciding to drop out and pursue his entrepreneurial ventures. His first venture, Y Innovations, is a nonprofit organization that focuses on creating affordable, environmentally-friendly housing for those in need around the world. Across the last three years, he has grown annual revenues from $5,000 year one to now over $500,000. Brennan has been featured in USA TODAY, given a Tedx talk, and has received a National Science Foundation grant to explore commercialization potential of straw bale construction. His second major venture, which he started in the last 12 months, is Scope Messenger, a mobile app that allows high school students to securely message with college students at 100s of universities. In our conversation, we talk about both of these ideas, where they came from, and how he executed on them. We also talk about dropping out of school, his deep curiosity and love of learning, and how he structures his time living on his own and being his own boss.