Landry: You're telling me, they planned this from the get-go?
Mitchell: Yes, sir, that counts from the boom you heard and the extra energy signature the gate diagnostic picked up in the first matter stream. They opened a wormhole through the black hole and then blasted a bridge into this universe. (to Teal'C) Isn't that how Carter described it? (to Landry) I don'T know, I just remember wormhole - black hole - blast.