Contraception and 'Human Continuum'

Bearing Blog has a very good essay up about contraception and the 'continuum' theory of living. She argues, and argues persuasively, that modern contraception (while it achieves the same end of population/family control) deviates much farther from 'natural' human processes than infanticide as practices in ancient cultures because it fundamentally changes our understanding of an activity that many humans consider important: sex.