User blog comment:Ben 1,000,911/CAPTAIN AMERICA WHAT (warning: spoilers)/@comment-4548390-20160526023344

I agree that the Cosmic Cube (Kobik) has something to do with it, but I don't believe his past was altered. Like I said in another thread, I believe Cap was really a Hydra agent, he belived in it. Don't know if Hydra counted on him becoming Captain America, a super-soldier, but I think at some point after he became Cap, he finally saw that what Hydra was doing, what it stood for, was wrong and turned on it. When Kobik rejuvenated him, she didn't only rejuvenated his body, but his mind as well. So he's now with the same mimdset he had back on WWII before he turned on Hydra.