What if crystals could store your personality — and eventually become sentient? In this episode of FGGGbT, the Brain Trust — Daniel J. Glenn, Dr. Michael Dennin, and Ben Sieper — dive into the fascinating world of psionic magical items, exploring the real science of crystals, information theory, and the question that haunts AI researchers and D&D players alike: when does something stop being a tool and start being alive?

We break down two categories of psionic items — crystals and tattoos — through the lens of materials science, electronics, and quantum physics. We explore how dorjes work like crystal capacitors with discrete energy symmetries, why they can only store odd numbers and never more than 17 charges, and how the Psicrystal — grown from a shard of a psionic’s own personality — maps perfectly onto modern AI development and information theory.

Dr. Dennin introduces Claude Shannon’s information theory (yes, the guy who coined the word “bit”) and explains why psionics aren’t just manipulating energy — they’re manipulating the fundamental probability structure of reality itself. We also dig into psionic tattoos, why their information density is limited by the resolution of ink on skin, and why you should probably vet your tattoo artist very carefully before letting them encode your psychic powers.

Finally, we tackle the big question: at what point does a growing Psicrystal cross the line from clever storage device to sentient being — and is wisdom just being too old and tired to care?