In this episode, we are joined by Dr. Soshany, a researcher delving into the realm of time travel and its potential paradoxes. If time travel were possible, it would seemingly lead to perplexing paradoxes, including the famous grandfather paradox and bootstrap paradoxes where creation appears to come from nothing.

Dr. Soshany introduces us to his groundbreaking mathematical model for a spacetime with a time machine. He explains two intriguing multiple-histories models, which propose solutions to time travel paradoxes by allowing for multiple timelines or histories. Any changes to the past, under these models, would occur in a new history, separate from the one from which the time traveler originated.

In this enlightening discussion, Dr. Soshany constructs novel and concrete examples of multiple-histories resolutions to time travel paradoxes. He delves into intriguing questions such as the possibility of returning to a previously visited history and whether a finite or infinite number of histories would be necessary.

Surprisingly, under certain conditions, Dr. Soshany reveals that these histories could be finite and cyclic, thereby extending the Novikov self-consistency conjecture to multiple histories and demonstrating hybrid behavior combining the two.

Towards the end of the episode, Dr. Soshany discusses how observers might experimentally differentiate between multiple histories and the Hawking and Novikov conjectures. Tune in for a riveting journey into the world of theoretical physics and time travel.

Keywords: Time Travel, Paradoxes, Multiple Histories, Spacetime, Grandfather Paradox, Bootstrap Paradoxes, Novikov Self-Consistency Conjecture, Theoretical Physics.

https://doi.org/10.48550/arXiv.1907.04178 Lectures on Faster-than-Light Travel and Time Travel