“Residual functionality” seems to mean that an object (device, person) used to be able to do a variety of things, but now it only does a few or one. For example, if your toaster no longer makes toast, it may have residual functionality as a doorstop.
Ah. Thanks. I knew that, but couldn’t bring it out of my forehead.
*sigh*
Doorstop. He-heh. I’m optimistic as to my ability to retain at LEAST that much “Residual Functionality” for the foreseeable future.
More generally, I observe that aging becomes an ongoing effort to successfully retain the highest level of Residual Functionality through acquisition of alternate, and transformation of existing functionality.
So, mathematically, death may be expressed as the limit life as Residual Functionality approaches zero?