From what I understand, this has been a practice in private practice overseas in less regulated regions for some time. That it is being introduced as a voluntary out-of-pocket medical treatment suggests that the future of improved longevity really will be reserved the super wealthy.

It reminds me of Altered Carbon, which is a Netflix series now, but I went and read the book as well and it was awesome, the worst aspect was the super wealthy living essentially forever and growing so detached from single-life humans as to view them as inconsequential. Not that there appears to be much difference between that and the super rich vs the poor today.