If a remote viewer could place him or herself one hundred years into the future and look back to see where the most significant "breakthrough" occurred in the field of human life extension, they might find that viruses played a major role.

"Gene therapy has long been thought to be a potential treatment for aging. One approach has focused on reversing molecular or cellular events that drive aging. Another has promoted processes active in bodies during their development and youth.

This study did both. "

https://www.mfoundation.org/news/2022/7/14/scientists-explore-the-life-extending-value-of-viruses

Well no. RV doesn't work by the viewer having any idea where they are going.

Further, if the secret of longevity or even immortality became widely known, then the consequences for the human race would be disastrous.

If you want to control an environment so well that the virii on the people inside that environment are controlled, then maybe. One tear in the environmental bubble or coccoon they are in, well, suddenly they are vulnerable to everything outside, and everything outside is vulnerable to what the people in the bubble had controlling them

In other words, nature would just throw more shit at the "protected" people. Including, from the "unprotected" people. :)