His touchdown pass was like an echo through the space-time continuum. There is young Trevor Siemian in a deep drop near midfield, sidestepping a zone blitz, lofting up a long ball down the left side for a 51-yard score to a streaking receiver. Siemian’s coming-of-age pass in the fourth quarter Sunday at Cincinnati to Demaryius Thomas looked remarkably similar to one he threw as a junior at Olympia High School in Orlando, Fla., in fall 2008.