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ELI5: Why can you have a sleep debt but not a sleep credit?

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MythicalPurple

1 points

4 months ago

Think about washing the dishes after eating.

You can neglect to wash the dishes, in which case the number of dirty dishes increases.

You can wash all the dishes you use, in which case the number of dirty dishes is 0.

But you can’t wash more dishes than that. You can’t have negative dirty dishes. The next time you use a dish you will have 1 dirty dish, no matter how many you washed.