... SEARCH ASP SITE: Match ALL words Match ANY word . ... My friend Seth Shostak presents a spirited defense of SETI. ... Where we clearly disagree is where Seth has misstated my arguments and, in so doing, has made a subtle, but important, mistake in his own argument. In the first sentence of "Going All the Way," Seth says that I consider only "a first generation of interstellar expansion." ... And then, in the third paragraph, I extrapolate the argument to the "galaxy as a whole." ...