Birth control may in time catch up with death control. ...But for the present and the short-range future, it remains obvious that humanity is in course of one of the most massive and extraordinary ecological upheavals the planet has ever known. ...a sequence of sharp alterations and abrupt oscillations in existing balances between microparasitism and macroparasitism can therefore be expected in the near future as in the recent past. (William H. McNeill)

Birth control may in time catch up with death control. ...But for the present and the short-range future, it remains obvious that humanity is in course of one of the most massive and extraordinary ecological upheavals the planet has ever known. ...a sequence of sharp alterations and abrupt oscillations in existing balances between microparasitism and macroparasitism can therefore be expected in the near future as in the recent past.

William H. McNeill

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abrupt birth catch control course death extraordinary future humanity known massive near past planet present recent sequence sharp time remains

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