And the environment is just, uh, entirely sterile, highly controlled. You have this whole team of medical professionals surrounding a conscious patient, which is already intense, right? And the surgeon is Wilder Penfield. He's, you know, the true pioneer in neurosurgery, and he is attempting something incredibly. He's performing brain surgery on a woman with severe epilepsy. Ohh wow. Yeah, and because he needs to know exactly which parts of her brain control which functions, he has to map her cortex while she is completely awake.

Because I mean, one wrong millimetre with that scalpel, exactly 1 wrong move, and he could permanently destroy. Her ability to speak or move. So Penfield takes this tiny electrode, and he stimulates a very specific localised spot in her temporal cortex. Instantly, the patient cries out. And she says, with this abs ...