"4.5 billion years ago, the Earth was born. Comprehending that vastness in time is no easy task.
John McPhee, in his book Basin and Range, recounts a nice illustration of what this sort of time means. Stand with your arms held out to each side and let the extent of the earth's history be represented by the distance from the tips of your fingers on your left hand to the tips of the fingers on your right. Now, if someone were to run a file across the fingernail of your right middle finger, then the time that humans have been on the earth would be erased."
E eu que uso as unhas sempre rentes.
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