theory about lucas' "joke dream"
SPOILERS
While the dream was treated as a joke, he was right about literally everything that happened in it, even the protag trying to get him, so this means he has some kind of mental sequence that allows him premonition or something similar.
Also, he recognizes the protag's mother and, at a later points says he doesn't remember how his girlfriend passed away, so that can mean that the protag's mother removed part of his memory.