>>10927641 >the nOtiOn ThAt AlL rEPROduCTive DeCISions wILl Be sOCialLy ReGULaTEd iN a post-AgEiNG woRLd is AbhOrReNt To One'S libertariaN InstincTS; bUt iF THEy WeREN't ReguLAtED, tHEn tHE eaRth WOULD soon sIMPLY ExCEed itS cArrYInG cAPAcITy - whETher IT IS 15 BIllion PeoPlE or eVeN 150 BIllIon.