You can’t pigeonhole David Horinek. How could you? He’s a chemist, a cryptocurrency inventor, business owner, and … expert hairdresser? 
You read that right. Horinek’s a true entrepreneur: He constantly conceives new ideas and is fearless in their pursuit, no matter where they take him. His varied interests have one thing in common: They require him to use math.
Read the full article on our Number Sense Blog