Actually, GameMaster. It was pointed out by the Think Tanks, that you will have no recollection of the events at the Big Empty, or the Big Empty at all while you're outside of the radar fence.
I remember that, and know it's just a cop out by the devs to explain away those interactions. That's fine and understandable, it's just kind of funny.
Elijah: "Big MT, blah, blah, blah, foreshadowing."
Courier: "I HAVE NEVER HEARD OF A PLACE LIKE THAT!"
Elijah: "Hey, what's that weapon you have in your hand?"
Courier: "Oh, this is just my Big MT Transportalponder."
Elijah: "Uh, where'd you get that?"
Courier: "I HAVE NEVER HEARD OF A PLACE LIKE THAT!!!"