Cognitive psychologist Roy Baumeister spent decades studying what he called 'ego depletion' — the finding that willpower draws on a limited resource, and that making decisions, even trivial ones, gradually degrades your capacity for subsequent self-control. But there's a darker corollary that Baumeister's collaborators noticed and that almost nobody talks about: the depletion doesn't just reduce your resistance to bad choices. It selectively removes the *perception* that a choice is even happening. The mechanism that erodes everything isn't the dramatic fall — the gamble, the betrayal, the outburst. It's the slow accumulation of low-stakes decisions that nibble at a finite resource until the moment something large arrives and you discover, with genuine surprise, that you have nothing left to refuse it with. Ancient Indian philosophy's concept of *klesha* — the mental afflictions that cloud judgment — maps onto this with eerie precision. The Yoga Sūtras identify one klesha as *avidyā*, typically translated as 'ignorance,' but more accurately meaning 'mis-seeing': the condition of perceiving a corrupted state as a normal one. Baumeister and Patanjali are describing the same architecture: exhaustion doesn't announce itself, it restructures your perception so that the exhausted state feels like ground zero. The practical leverage here is not motivation or discipline. It's sequencing. The person who loses everything does so partly because they have been making inconsequential decisions all day long — what to reply to, what to eat, which mild irritation to suppress — and have scheduled the consequential choice for last.

Think back to a significant mistake you made. What time of day was it, and how many decisions had you already made before it?

Drawing from Cognitive psychology / Yoga philosophy — Roy Baumeister (ego depletion research, 1998–2011), cross-referenced with Patanjali (Yoga Sūtras, klesha doctrine, c. 400 CE)