The inexorable logic of techno-industrial efficiency, on its anti-gravity vector, means that the only consistent motivation for leaving the earth is to dismantle the sun (along with the rest of the solar-system), but that doesn’t play well in Peoria. Unsurprisingly, therefore, those sensitized to political realities, media perceptions, and public relations are inclined to emphasize other things, depicting the earth as a destination for cosmic bounty or — even more immediately — for juicy tax-funded pork, rather than as a tricky but highly-rewarding demolition problem.