I wasn't! So he's the guy that developed the sensory deprivation tank, and then started using them to take psychedelics in. Thanks for mentioning it, I never realised there was a link.
Most of the few biohackers I've come across are mentally ill or otherwise reckless and dangerous. I hate being against open knowledge-building, but a world where real viruses are build, modified and transmitted in a similar way to computer viruses is a world I don't want to live in.