Call your grandma back. That voice mail won’t be available forever.

Availability is the quiet condition underneath every intention to call later. A person is reachable until they are not, and the change rarely comes with warning, which means the postponed conversation is being postponed against a clock nobody can see. That is not a reason for dread, only for picking up the phone sooner.

Make the call you keep meaning to make, today rather than on a better evening. It does not have to be long or important. Ten minutes about nothing is the entire point, and both of you will have had it.