|Flattening the Curve.
Everyone talks about 'flattening the curve'. What do they mean by that? When the squares move faster, that is like our normal lives and we interact with more people. When the squares move slower, this is what happens when we isolate or 'social distance' ourselves from others. In other words, we meet (or intersect in this case) with fewer people during a given span of time.
Notice the red part of the graph below, if we choose the slower speed there will be less interaction among the squares. Less interaction lowers the number of COVID-19 cases at one time. Lowering the number of cases (the red part) means that the hospitals are more likely to be able to keep up. If the hospitals can't keep up, people die.
That is what 'flattening the curve' means.
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