I once read a science fiction story that theorized that we never die. We just grow more improbable. Whenever we face a life/death moment, there is always a probability, however remote, that we could survive. In one universe we might die, but in an alternative universe somewhere that branches off from our reality the remote probability that we survive is followed. It was a neat theory for a science fiction story. This site has found a way to make money from a very similar idea. Just before you die, they promise, you will be sucked into the future by time travellers. You guarantee this by putting $10 now into their time travel mutual fund. Over 500 years that $10 will turn into millions of dollars, thanks to the miracle of compound interest. This will pay for the expense of sucking you into that future world. Somehow I doubt that they intend to keep any money given to them in a mutual fund for 500 years. But at least they give you a certificate in exchange for your cash.