Yes and No
Yes, I did know:
Yes, I'd been told.
It would be so,
When I grew old.
That eyes would fail,
And fingers shake;
That skin would scale;
And joints would ache.
That grip would lose hold;
Brain would run slow;
This I'd been told;
This I did know.
That sound would fade;
Attention flag;
Mistakes be made;
Footsteps would drag.
But that in the old
Young blood could still flow;
I was not told,
I did not know.
(Being anonymous this verse prevents me from providing my normal footnote! But it seemed an apt choice for an 80 year-old siter of webs)