In the 2017 Justice League movie, Victor is talking to his father about how he has turned into something he doesn’t understand, as seen below in this clip:
The exact quote is found below.
Victor: Every day I wake up different...modified.
Victor flies into the air with jets on his feet.
Victor: I couldn’t do that last night.
My question is, how exactly is this happening to Victor? I’ve been looking through the movie but haven’t found a detailed explanation on what exactly is causing these changes and why they are occurring.