Psilocybin and psychedelics in general are substances that have been with us for decades. But in its recent history one particular milestone marks a before and after: the legalization of cannabis for recreational use in Colorado in 2014. Today, ten years later, more than 100 million adults in the United States have gone from not having legal access to cannabis to being able to get what they need at their local dispensary. While the rescheduling of cannabis is being discussed, the legalization conversation is now turning to psychedelics, where both promising scenarios and specific challenges ar…