At a certain location on Wall Street, a group of investors were thinking of getting in on the ground floor of an industry that is, for now, largely illegal. While there was a clandestine feel to the event, it was impressive for the businesslike approach of the various entrepreneurs, all of whom are involved in the cannabis industry in the states that have legalized its usage for medical purposes, toward the investors. They were pitching ideas, not about cultural change but about financial opportunities.