Useless board. Unless anchored to a specific date, there's no way to know if an actual time traveler shows up.

This is heavy, Doc!

I was going to tell a time traveling joke here, but you guys didnt like it.

Can't make it last Thursday. Can we push it to the Thursday after?

Ok, now you have to get your friends to hang out there every other Thursday at 7pm. So someone that has no idea what's up, it's actually last Thursday, right then and there.

Recursive directions. Slingshot through time and now I'm waiting for Thor mythology to drop.

Get a bike, move your feet backwards, you are there /J