Logic

What these areas do

Step-by-step reasoning is most often linked to the prefrontal cortex, the part of the frontal lobe just behind your forehead. It acts a little like a mental workspace: holding several possibilities in mind at once, weighing them against each other, and keeping track of what you have already ruled out. This is the area researchers point to when they talk about planning a chain of thought and resisting the first answer that springs to mind, so you can reason your way to a sounder one.

Where you use this

Logical thinking is what you do when the internet goes down and you work along the chain: the router, then the cable, then the outlet. It is following instructions that assume you know more than you do. It is trying the likeliest of four keys first rather than all four in order. Ruling things out in a sensible order, and noticing when a possibility has already been ruled out, is most of what it amounts to.

What your mind is doing in Cipher

Cracking a hidden combination is pure deduction: each guess tells you something, and you fold that clue into the next move. You are reasoning forward, keeping a running picture of what is still possible. There is nothing clinical here and no ability score. It is a satisfying daily puzzle, and a calm way to keep careful, step-by-step thinking active.

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