LARRY NEMECEK is "Dr. Trek" —TNG Companion & Stellar Cartography author, leader Portal 47.net & Trekland Treks, podcaster/The Trek Files, Trekland—and of course fan. ALI MATTU is a big geek. too—and an *actual* doctor, seen on HBO, Netflix, BuzzFeed and his own "The Psych Show" on YouTube.