What humans call it.. sure.

[This guy was seeming certifiable, so for the moment Kaiba's quips didn't go beyond general sarcasm. How did he always manage to cross paths with these lunatics? What made them gravitate towards him?]

If you've had to return multiple times, then what's been sending you back to the... Lifestream?

[Maybe he shouldn't ask ]

Ah- least there's some logic in there.. despite starting from a false premise. You must be so proud.