If Robert Porters body was being inhabited by an alien that traveled far faster than the speed of light, which no human body could withstand, how was Prot traveling on earth for 5 years in Robert Porters body. In the movie he went up north and was missing from the psych ward for three days. How did he travel in Roberts body? Robert Porters body just appeared in the train station. How? The movie leaves this unanswered.

If Robert Porter's body was being inhabited by an alien that traveled far faster than the speed of light, which no human body could withstand, how was Prot traveling on earth for 5 years in Robert Porter's body? In the movie he went up north and was missing from the psych ward for three days. How did he travel in Robert's body? Robert Porter's body just appeared in the train station. How? The movie leaves this unanswered.