"If someone turned up and offered an imitation of eternal life how many will take it? " Yes, I think a lot would, especially if they market it as taking away pain, anxiety, ill health, etc too. Maybe they will say they could control brain neurotransmitters to prevent depression, etc, in fact they've already started in with that one. I remember when i was a kid, the tv told me to strive for certain things to be happy but then when I got those things, there were always more things it told me I'd need. Happiness was a carrot on a stick and i was running on a treadmill but finally I realized their route does not lead where they claim it does, in fact it mostly leads the opposite way. And having wandered so far in the wrong direction, it's slow and painful to find my way back. But many have not even realized that subterfuge yet and I fear for them. If they are promised a magic fixit solution, many will likely go for it despite this reality's track record of failures in that department.