"Yes, I know Daniel Jackson," he agreed. They weren't close, but they knew each other.
Martouf's eyes widened at his explanation. He'd never heard anything of the sort - that certainly wasn't the Earth that he knew. He knew a bit of the multiverse theory, and had to guess that this man was from an alternate version of Earth than the one his Tau'ri did.
"That sounds...terrible. This world, I assume, is quite different from yours? What yours could have been."