It can be slowed down to fair extremes. But it can't be stopped. Nothing can stop all mighty Entropy, which dictates everything of what is and will be.

I suspect it's theoretically possible. So long as your genome and epigenome are stored somewhere in your body, minimally mutated, all of your existing cell lines could be gradually restarted with younger versions.

Maintaining age will happen far sooner, so until we have that I'm not sure there's much point in discussing reversal. Unless the advancements required to achieve them are similar.

Why should we? Doesn't it make us human?

So far, I think there are three main roles to have a purposeful life:

Putting all three together, the logical conclusion is to have children and fucking die!

You will have the best experiences on planet Earth watching your child grow up and being the best parent there is. There is no greater responsibility than having a child. Your child will hopefully survive you and carry on your legacy.

Don't you break all that with immortality?

how about people first stop consuming all kinds of toxic sludge and figure out what's in their air, water, and food, before playing around with cells on a molecular level? hmmm?

reversing aging is not the same as immortality. you might be making a comparison that doesn't make sense.

there's a well trod phrase:

The word "aging" is sometimes used to refer to the total system failure that comes with age. And so when people say "reverse aging," they often mean reversing total system failure. It might be the case though that we are able to reverse some systems and thus reverse some parts of aging, but that other systems are more complex than we give them credit for or could possibly appreciate.

All that is to say that I think immortality is within our reach. That it is a surmountable engineering problem.

However, it may not be within my reach. I'm also not certain after some decades of being a life extension enthusiast, whether or not I still hold the view that living indefinitely is the superior option.