I'm with you... Through the whole episode I was thinking that when is gonna show him waking up or realizing the things didn't happen... Then it didn't... It all kinda reminded me about Pheonoman with John Travolta... Could it be that the purple sky & released something and now he has a tumor on his brain like in that movie and he is getting use out of more of his brain that "normal"

__________________
Please don't give up, Des. Because all we really need to survive is one person who truly loves us. And you have her. I will wait for
you. Always. I love you, Pen

DESMOND: I love you, Penny. I've always loved you. I'm so sorry. I love you!
PENNY: I love you too.
DESMOND: I don't know where I am, but--
PENNY: I'll find you, Des--
DESMOND: --I promise--
PENNY: --no matter what--
DESMOND: --I'll come back to you--
PENNY: --I won't give up--
BOTH: I promise. I love you.