"Money is becoming increasingly plastic and digital. If there is a major disaster, let's say an asteroid strike, we'll go back to trading meats and furs. We won't need an abstraction, a dollar bill, but real tangible goods to survive."

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Preschoolers sound much brighter and more knowledgeable than they really are, which is why so many parents and grandparents are sosure their progeny are gifted and super-bright. Because children's questions sound so mature and sophisticated, we are tempted to answer them at a level of abstraction far beyond the child's level of comprehension. That is a temptation we should resist.

— David Elkind