Mind States VII was held in Costa Rica last month, and Erowid.org now has a summary of the event available, written by Lux. Conference speakers included Sasha and Ann Shulgin, Erik Davis, Mark Pesce and Jonathan Ott (among others). No doubt, audio from the lectures will become available over the next couple of months – but until then, you can check out Mark Pesce’s talk titled “Natural Selection” over at YouTube (multi-part, follow the links on YouTube for the subsequent video sections).