Today's physics joke is called "spooky inaction at a distance".
Scientists in orbit around earth prepare two entangled photons, one will be measured vertically to get the spin up or down
at the laboratory in earth orbit. The other will be sent to star base Alpha Centauri 4.4 light years away for Fred to measure
vertically to get the spin up or down and send us the results in an email.
About 8.8 years later we receive Fred's email, the text of that email is in the spoiler below.
Which way is vertical we'll have to repeat the experiment.