The Wheel > or < Fire?

Yesterday's Inequality here! The Wheel allows humans to transport heavier and larger objects than we would otherwise be able to move. The wheel also speeds up progress and has led to many other inventions that use the wheel. Fire provides heat and light, as well as allowing humans to cook food and boil water. It broadens the climates we can survive in, expands our diet, and allows us to see in the dark.

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