If in the future: RIP, Miller Williams

My wife and I quoted the final stanza of this poem on our wedding paraphernalia. Rest in peace, Mr. Williams.

If in the future
a time traveller
comes back to this moment
he’s here now.

At 15,000 feet you see a car
run off a country road and turn over.
It’s already a county away.
Take the coffee.

There will come a year
when one by one your friends
thumbing past your last address
will think to mark through it.

If I could be
in two places at once
I would be with you twice
all the time.

— Miller Williams
“Sitting Alone at Sunrise: Problems in the Space-Time Continuum”