"study conseals" that you can get whatever results wanted simply by taking the subject out of context,like from the moon to earth. on.the moon, it is extreamly cramped quarters,surrounded by deadly vacume and dust, keeping the vacume out is one of the main concerns, but nothing can get rid of the dust, which by all.accounts is bad stuff, and there will beno break from it. earth on the other hand, has you know, air,rain, showers and laundry, a biome to live in,fresh food,and plenty of room to walk away from some dust covered idiot,phd's not withstanding, that wont(cant) back off and let you breath some dusty air in peace.