Appearing on Joe Rogan's podcast The Joe Rogan Experience, Elon Musk said that we are probably living in a simulation and smokes weed for perhaps the first time.
In the podcast he discusses science, technology and the probability of life being a simulation.
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Mr Musk says he believes we are most likely stuck in a "Matrix"-like world, and that due to the way which games are improving and developing, reality and technology will soon be indistinguishable.
"Therefore, we are most likely in a simulation, because we exist. I think most likely this is just about probability, there are many, many simulations," he added. "You might as well call them reality, or you could call them multiverse."
Midway through the video Rogan pulls out a joint, and Musk asks, "Is that a joint or a cigar?"
When Rogan asks if he has ever had it, the Tesla boss says he has tried only once - so Rogan offers Mr Musk a hit.
After a while it takes hold, and Mr Musk begins to really take his time responding to questions and begins speaking very slowly.
Apparently a rare occurrence for the multi-billionaire, who says marijuana affects his productivity.