Why the [expletive] can’t we travel back in time? [Ars Technica/Paul Sutter]

No known law of physics forbids time travel to the past.

Either time travel to the past is possible, or there’s some fundamental, basic physics we still don’t understand.

Either possibility is exciting.

“It’s obvious that the Universe is telling us something important… we just don’t know what it’s saying.”

Mitch W @MitchW