Supernova is a portfolio service where The Motley Fool invests real balance sheet cash in two growth missions based on David Gardner's investment philosophy. Follow Odyssey ($50K starting, $1K twice monthly) simulating a wage-earning investor, or Phoenix ($500K invested in large chunks) mimicking a pre-retirement investor. Both select from our curated Supernova Stock Exchange, which features Rule Breaker-type companies of various stripes.