Sometimes a stone rolling down a hill dislodges another stone. Now there are two stones rolling down a hill. The probability of another stone being dislodged has increased.
Entire landscapes have been changed this way.
Sometimes a stone rolling down a hill dislodges another stone. Now there are two stones rolling down a hill. The probability of another stone being dislodged has increased.
Entire landscapes have been changed this way.
Not by yelling at someone
Not by yelling at someone
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