PLACEBO By DAVID MASON Each 1955 was worse than the last! [Transcriber's Note: This etext was produced from Infinity Science Fiction, November 1955. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] The object appeared in the middle of Main Way, about fifty feet from the statue of Vachel Lindsay, and at least a hundred from anything else. It was much too big and complicated to have been hidden anywhere, and it hadn't any wheels, tracks, wings, or other visible means of movement. Corrigan, looking the object over, decided that it could not have come from any logical place in the world. Not being prejudiced, he then thought a little about the illogical places, and the places that weren't in the world. Corrigan decided that it must be another attempt at time travel, and he clucked his tongue sympathetically. Well, someone had to break the news. Corrigan arose from the grass and walked toward the object. There was a young man sitting in the object, on a sort of high saddle. He looked a little wild-eyed, and he seemed to be talking to himself, as he pulled and twisted at the rows of controls in front of him. Corrigan, looking up at him, decided that he couldn't be very healthy, and that the stiff gray garments he wore must be extremely uncomfortable. "Greetings, traveler," Corrigan called. "You're speaking Anglish!" the young man exclaimed. "Good! Maybe I can get some help here. What year is this?" "1955, by most systems." The young man turned a little paler. "I've just left 1955," he said unhappily. "Four times, in fact. Four different 1955's. And each one's a bit worse. Now the machine won't work." "Your theory's wrong," Corrigan said calmly. "Hasn't it occurred to you yet that time travel might be impossible?" The young man made a choked sound. He began to climb down from his perch, keeping his eyes fixed suspiciously on Corrigan as he did so. He saw Corrigan as a small brown man, dressed in loose blue trousers, barefooted, and with a puff of white hair that seemed never to have been properly cut. The lawns and grassy roads, the bright and