Every decision a founder makes is filtered through System 1, an automatic operating system built from patterns encoded before they were capable of questioning them. Daniel Kahneman's research distinguishes between known unknowns, which coaching can close, and unknown unknowns, which require surfacing what System 1 has been running without awareness. This issue of The Grip by Becky Henderson reveals the invisible tax of unexamined patterns and what breakthrough change actually looks like when a founder crosses the perceptual threshold.