

Musk also talked at length about Tesla, the electric-car company he runs, and the need for our species to wean itself off fossil fuels. For example, Musk reiterated his concerns about unregulated and uncontrolled artificial intelligence stressed that a bright and appealing future for humanity involves exploring and settling other worlds, both in our solar system and beyond and discussed the traffic-reducing potential of extensive tunnel systems, which his Boring Company aims to build in big cities around the world.

This was far from the only ground that Musk and Rogan covered during their 2.5-hour conversation. Indeed, the simulation idea is one of many possible explanations for the famous Fermi paradox, which basically asks, "Where is everybody?" ("Everybody" being aliens, of course.) And it would be hard for the inhabitants of these digital realms to figure out the truth, because all the evidence they could gather would likely be planted by the creators. If even one advanced alien civilization with a predilection for creating simulations has ever arisen out there, the reasoning goes, then it could theoretically pop off thousands - or perhaps even millions or billions - of "fake" universes. The billionaire entrepreneur is far from alone in this interpretation a number of physicists, cosmologists and philosophers find the simulation hypothesis compelling. "Why would you make a simulation that's boring? You'd make a simulation that's way more interesting than base reality," Musk said, citing the video games and movies that humanity makes, which are "distillation of what's interesting about life."
