The incredible shrinking foil

c: | f: /

Cheese goes in. Cheese comes out. Cheese doesn’t fit. Ug?

So you open a block of cheese and wrap the remainder in just enough foil. Next time you use the cheese, you unwrap it carefully, hack off a lump and then re-wrap it. But the foil doesn’t stretch round the cheese any more, despite there being a smaller volume to wrap.

Same applies to Easter eggs. What gives?

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