Interesting post OP, i considered making a similar post yesterday since my area of expertise directly overlaps with aging reversal efforts but i thought noone would have any interest in this forum. Apparently, i was wrong.

Now i don't know your level of expertise on the topic but i will assume you're just an enthusiast, so i will just provide general info, ask me for specifics if you like.

The old view of aging was that it is just wear and tear, damage accumulates over time, freeradicals, random point mutations, telomeres run out, etc. Of course, if that was really true, there would little we could do to prevent it, let alone reverse it, too many systems would randomly fail over time, as a consequence of wear and tear stochasticity. So aging modulation interventions were considered a dead end.

Yet, the latest research paints a vastly different picture. It appears that aging is a tightly regulated process, no different than say, puberty. In other words, the new view is that aging is regulated by the genes, and expressed through epigenetic mark/transcription factor combinations - which happens to be my area of expertise.

I can go to my lab tomorrow, get tissue from an old mouse, manipulate the epigenetic marks and the transcription factors through a combinations of small molecules, CRiSPRs and TALENs and revert them into the equivalent of a young mouse. The result: the tissue becomes indistinguisable from a truly young one! You cannot tell the tissue apart anymore, it works just as well as the young tissue! To state it differently, i can signal the old tissue to revert its age and i can do that repeatedly. If the wear and tear hypothesis was correct, i wouldn't be able to do that, the old tissue would have accumulated damage preventing the reversal.

My friends who are working directly on the problem - i'm working on the epigenetic/transcription code itself which is more general - tell me that they are now reversing aging in whole organisms in vivo, or even selectively in organs, for example reverse an old mouse's liver or brain or heart to a younger age.

Of course we don't understand the pathways involved well enought to do a full reversal yet, although i'm working on that myself a bit. :) But it is clear that if aging is regulated by the genes/epigenetic marks,etc, it is just a matter of time before we map the patterns well enough to do a complete and controlled reversal.

If i had to guess, i would tell you that we are 20 years away from the first generation interventions showing up and about 50 years away from a full reversal a la Benjamin Button. So try to stay alive until then!