So much retconning. So very much. "Yes, in fact, Tuvok *was* on the ship Sulu was captaining when they went to rescue Kirk and McCoy from K'Wo'nos (s/p?)." And "Hey! Isn't it amazing that those two Ferengi from that NextGen episode who were left in the Delta Quadrant by the Enterprise managed to meet up with Voyager!"
Apparently the laws of probability are wildly different in the Star Trek universe. ;)