Philosophers and other thinkers had many different ideas and propositions about the possible connection between reason and the physical world. One of them is the one you've posted, however, that doesn't mean it's universally recognized or true.
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A bank run is where a lot of people simultaneously withdraw money from the same bank. Its when they don't trust their bank. It makes the people at the bank have a bigger chance of loosing their job because the bank might not have enough money to fill their withdrawals.