And yet. A lifetime of reading science fiction has taught me that we change the past at our peril. We have no idea of the tangential consequences our actions and inactions give rise to. (Just suppose I had had children instead of dogs!) One certainly doesn't want to interfere with the space-time continuum.
I am always the first to preach (and have done so here) that the best course, the only course, is living in the moment, that the past is gone and the future is a distant fiction. Easy enough to say when we're not looking in the mirror or a photo album.
Our bodies and minds betray us, giving rise to such speculation as I've been indulging. I used to think that if I didn't use my body it would stay nice for later. Not so, not so. Words escape me and my joints crackle like static. I adjust the volume in opposite ways than in the past. I still don't know how to ride a bike. And also, I am nearing a haunting convergence: this is the year I will out-live my mother. As Donald Hall writes in "The Day I Was Older":
Whatever my complaints, this old road isn't really so bad or even lonely. Following in her steps, I know some of the things my mother knew but wasn't here to tell me. The company along the way is often convivial and always varied. And lovely time sloshes in a friendly bottle which we pass from mouth to mouth.
…Now I have wakedMore mornings to frost whitening the grassRead the newspaper more times, and stood more times,My hand on the doorknob without opening the door.