There are a lot of things that Musk says. The billionaire and the CEO of the company believe that humans will be able to live forever if they download their brains into the machines.

I think it is possible, Musk recently told Insider. It is definitely going to be different if you are not in that body anymore, but as far as preserving our memories, our personality, I think we could do that.

The evolution of such technology will be gradual, according to Musk. We have amplified our human brains with computers.

The concept of prolonging human life by downloading consciousnesses into synthetic bodies has been a fixture of science-fiction for decades.

In a Wall Street Journal essay, a psychology and neuroscience professor wrote about how mind uploading would require an artificial brain and a brain Scan.

The creation of the artificial brain would be easy, but we would need a lot of equipment to do it. The most optimistic predictions place mind uploading within a few decades, but I would not be surprised if it took centuries.

One of Musk's current start-up ventures, Neuralink, is working to develop a brain-machine interface that could one day allow people to shop at a store.

Neuralink's products will be helpful to someone who has lost the use of their brain for a long time.

Musk does not endorse the idea for anyone else to live forever. They die. We will be stuck with old ideas if they don't die.

There is some speculation in the Musk household as to who would want to try mind uploading if it becomes possible in the near future.

Bezos has a track record of investing in longevity and anti-aging research, though he has not publicly expressed any interest in such technology. He did not reply to CNBC Make It.

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