Just don't do this, OK?
Einstein always said that space was curved. Well, all right then. With the help of a little basic quantum physics (is there any other kind?), I built my new house into the fourth spacial dimension.
I now stand in the hallway that runs through my house, and find myself staring at my own back, fifty feet away. So I pursue, er, me. Breaking into a brisk trot I cannot catch up to me. Darn, but I run nice!
Stop! Turn around! Again! AGAIN! No matter how fast I turn, I am still staring at my own back.
I roll a ball towards me. Helpfully, I spread my legs wide, and I do the same. I can see the ball going cleanly between my legs, as a ball rolls gently through mine.
Damn it, I want to see my face!
An IDEA! Grabbing a small mirror, I lift it up and over me, so that I can see the smug face of me behind me.
There are some things that can snap one’s sanity like a twig.
In the elevated mirror I could now see an unbroken line of me’s, stretching out to infinity, all with a look of instant overwhelming terror…