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Reinforcement is the central factor in the acquisition of new behavior patterns.
I'm not a politician, I'm just a citizen who cares.
The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.
The past is a foreign country; they do things differently there.