Because, uh, you've known about it for the longest time.

[Out of the two of them, anyway. Don't make Carlos give out exposition. He's the baby ESPer here. :( Sad. He rubs his neck once Junpei has finished, though, glancing over to Beck.]

It's just like Junpei said. We're espers. I've always been able to use the field to know which paths have death at the end, but...