![]() It's often right to do so, because System 1 is for the most part pretty good at what it does it's highly sensitive to subtle environmental cues, signs of danger, and so on. System 2 is slothful, and tires easily (a process called "ego depletion") – so it usually accepts what System 1 tells it. Kahneman compares System 2 to a supporting character who believes herself to be the lead actor and often has little idea of what's going on. You're wrong to identify with System 2, for you are also and equally and profoundly System 1. ![]() It's "the conscious being you call 'I'", and one of Kahneman's main points is that this is a mistake. (To set it going now, ask yourself the question "What is 13 x 27?" And to see how it hogs attention, go to /videos.html and follow the instructions faithfully.) System 2 takes over, rather unwillingly, when things get difficult. ![]() Its operations involve no sense of intentional control, but it's the "secret author of many of the choices and judgments you make" and it's the hero of Daniel Kahneman's alarming, intellectually aerobic book Thinking, Fast and Slow. System 1 is fast it's intuitive, associative, metaphorical, automatic, impressionistic, and it can't be switched off. ![]() We now know that we apprehend the world in two radically opposed ways, employing two fundamentally different modes of thought: "System 1" and "System 2". These days, the bulk of the explanation is done by something else: the "dual-process" model of the brain. ![]()
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