Sunday, 26 December 2010

Kant

After lunch today seven of us were staring at novelty dice from a Christmas cracker. Sudden illumination: how about a really simple game? We had just one rule: every time someone rolled a six they could invent a new rule. And just one explanatory remark: rules have to be what Kant called "universalizable": they should not refer to specific people. (Thus: "every time someone rolls a two then the die reverses the current direction of travel" is universalizable; "every time someone rolls a five then they should hit Edward on the arm" is not.)

It worked amazingly well ...

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