Let’s get away from travelling to the past for a moment. Let’s look at what was made popular in Back to the Future pt 2, where Marty sees his son, or his girlfriend sees herself.
It cannot happen! If you left time, you would be considered ‘missing’, or dead. The truth is, you don’t exist from the point in which you lept forward in time. You therefore cannot see yourself, or your son, because you stopped existing at that point in the past where you left.

Is this a proper paradox? Is there any reasoning I am missing that says you can see your future self?

Look forward to responses.

1.21 Jiga-watts