SPOILER: He ascended. Near-catatonic state, and with the low room temperature he would've slowed his body down enough for the right numbers (ATL: The Tao of Rodney). Guess he just pulled too much info out on his own after stumbling on the library about Ascension. so that buffer they implemented isn't to protect them from the ship, but vice versa (imo).
Whoa, that episode was amazing! So many mysteries! I've been discussing how Scott, Eli and Chloe got back and while everyone seems to think it was too conveniant, I've got my own theories that the aliens dialled to see if they could send troops in through the gate.
Seeing Rush in his normal habits was... An interesting experience. I do really like how he's developing. All in all a great episode, can't wait for next week!