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There is a lot of research on rational / conscious thought vs. heuristic / unconscious decision-making, and this research reveals many scenarios where subjects make better decisions when they "trust their gut" rather than "think things through". Check the following resources for examples: ...


Addressing your first question (like @Josh, I would advice moving the other point to a new question), Morsanya & Handley (2008) (I can't find an open-access copy, sorry) have recently argued that heuristics have to be learned and acquired over time. They presented a group of children aged 5 - 11 with several multiple-choice reasoning tasks, consisting of ...


I never knew the name for this before and used to just call it "awareness bias"; however, upon reading your question, I did a little bit of digging on Wikipedia and found out about the mere exposure effect, also known as the "familiarity principle" in social psychology. My other source was this page.


The question is asked – and Arnon's answer is given – based on the assumption that biases play a role only in "momentous" descisions, that is decisions that are relatively rare and can profit from rational consideration. But biases play a constant role in navigating your everyday life. For example, you don't do the Pepsi Challenge every time you buy food. ...

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