They certainly will be, but not necessarily for the worse. Imagine oil billionaires having to live through the consequences of their actions. Imagine the societal benefits of people being able to use their decades of valuable experience for much longer, rather than having it die with them.

I do believe it’s going to happen, but personally I’m more pessimistic than GP and don’t think it’ll be within my lifetime. Medical research is so tightly regulated when it comes to testing on humans (for good reason!), and there isn’t enough money going into the field.