72-year-old Chris Langan is considered something of a genius thanks to his IQ of between 190 and 210.
Officially considered to be the world's smartest man, Langan has been using his superior intellect to develop what he calls the Cognitive-Theoretic Model of the Universe (CTMU).
He maintains that when we die, we transition from one form to another, or in other words, we move to a different plane of existence that we are unable to access during life.
"[Death is the termination of your relationship with your particular physical body that you have at this present time," he said on the Theories of Everything with Curt Jaimungal podcast.
"When you are retracted from this reality, you go back up toward the origin of reality. You can be provided with a substitute body, another kind of terminal body that allows you to keep on existing."
When this happens, he argues, you may lose all memory of who you were previously.
"Nothing goes out of existence in the math," he said.
"Your memories can always be pulled back out, but there's no reason to do that usually."
"Why cling to memories of a world in which you are no longer instantiated ? So, there are certain automatic psychological things that happen on death, at the moment of death."
Langan also suggests that we may reincarnate a limitless number of times.
"Arguably, all of your lifetimes, if you were to be reincarnated again and again and again, all of those reincarnations are meta-simultaneous."
"There is a sense in which they all occur at once in the non-terminal domain."
You can listen to the interview for yourself below.