Grant Castillou is a Vancouver-based enthusiast who’s spent years exploring the Theory of Neuronal Group Selection (TNGS), a neuroscience idea he champions. A curious thinker, he got hooked on brain science and artificial intelligence back in the ‘80s when personal computers first hit the scene.

In this episode, I sit down with Grant to trace his path from those early tech days to his deep dive into how brains might create consciousness—and whether machines could ever follow suit. We cover the mechanics of TNGS, his take on AI’s future, and why he thinks biological minds are unique, all while keeping the vibe casual and direct. It’s a straight-talking convo for anyone into neuroscience, tech, or the big question of what makes us tick.