I understand your point, but sometimes technology doesn't move in inches, it makes huge changes or none at all. A breakthrough in stem cell research might suddenly give us the ability to live practically forever.
That's why I said "short of a major breakthrough". We've definitely amassed a large amount of knowledge on telemeres, stem cells, etc...
and I myself am hoping for one of these major breakthroughs and I hope to be young enough to be able to take advantage of it but
as it stands right now I don't even know of even any experimental treatments looking to halt or reverse the aging process which is
what we really need to do to get significantly past the 100 mark. My guess is that when/if it happens that it will probably first be
for premature aging or it's possible that it will be discovered by accident when we realize that some treatment for demetia or cancer
has allowed someone to reach 150. If it's the latter and we have to wait for someone currently alive to reach 150 before we
accidently discover it then unfortunately it will probably be too late for me and most of the people on this site.