A Revised History of Earth Sherla was lying on her belly on her bed, one of the two tiny singles in the tiny cabin she shared with one of the research girls that just came on board. “Mattie,” she said without looking up from her nail polish, “you can keep talking if you want but I don’t really care about any of that.” “But the tests are conclusive,” the other woman replied, waving her tablet in the air. “I’ve got it all right here.” “Don’t care,” Sherla repeated. She applied another strip of opaque black polish to a blank nail…