I don't think there's a date minimum or maximum. I don't get the whole 'All right you've got to wait three days to call after the date.' If I got a number from a girl I'd call that night. There's no science to it for me. You just do what it is that you feel like doing.
That is the essence of science: ask an impertinent question and you are on the way to a pertinent answer.
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Traditional academic science describes human beings as highly developed animals and biological thinking machines. We appear to be Newtonian objects made of atoms molecules cells tissues and organs.