E impractical--you can't sell people merely useful ideas." From his hassock in the center of the room he looked uneasily around. "Say, did that violet tone in the glass come from the high Cleveland hydrogen bomb or is it just age and ultraviolet, like desert glass?" * * * * * "No, somebody's grandfather liked it that color," Gusterson informed him with happy bitterness. "I like it too--the glass, I mean, not the tint. People who live in glass houses can see the stars--especially when there's a window-washing streak in their germ-plasm." "Gussy, why don't you move underground?" Fay asked, his voice taking on a missionary note. "It's a lot easier living in one room, believe me. You don't have to tramp from room to room hunting things." "I like the exercise," Gusterson said stoutly. "But I bet Daisy'd prefer it underground. And your kids wouldn't have to explain why their father lives like a Red Indian. Not to mention the safety factor and insurance savings and a crypt church within easy slidewalk distance. Incidentally, we see the stars all the time, better than you do--by repeater." "Stars by repeater," Gusterson murmured to the ceiling, pausing for God to comment. Then, "No, Fay, even if I could afford it--and stand it--I'm such a bad-luck Harry that just when I got us all safely stowed at the N minus 1 sublevel, the Soviets would discover an earthquake bomb that struck from below, and I'd have to follow everybody back to the treetops. _Hey! How about bubble homes in orbit around earth?_ Micro Systems could subdivide the world's most spacious suburb and all you moles could go ellipsing. Space is as safe as there is: no air, no shock waves. Free fall's the ultimate in restfulness--great health benefits. Commute by rocket--or better yet stay home and do all your business by TV-telephone, or by waldo if it were that sort of thing. Even pet your girl by remote