Doug Rushkoff had a talk where he called out local currency as a thing he’d like to bring back from the medieval.

Exclusive to the community, and only valid for a short period of time, so you can’t hoard it or siphon the wealth to another community.

Edit:

Found a blog post about it: https://archive.rushkoff.com/articles/local-money.html

It doesn't say anything about it being temporary, although he does mention that in his talk here: https://www.youtube.com/watch?v=rRWzOdUiqQE

Bathhouses. The local Quicklee's just doesn't do it.

Can we get guilds back?

Dragons

I unplug for a few days and this pops up on my feed. ??????????

The commons

I could be down for small beer being the main thing we drink.

Free time

Trebuchets, which btw are far superior to catapults.

I just really like walking around eating giant turkey legs.

Chaperon hats.

Oh oh oh oh oh oh!
JOUSTING!

We can do it with motorcycles this time instead of horses!

OH ALSO

Private Military contractors should begin to dress like crosses between clowns and noble-knights again.

(hours later addendum) Bowing as a form of social greeting. We REALLY missed a beat when we didn't bring this back when COVID made people afraid of getting too close to each other.

I recently got into armored combat so, knights. If we're gonna kill each other, let's at least be civilized!

Child labor.

Oh, wait…

Moats. I was kidding at first, but I'm now thinking lazy rivers are modern moats.

A blowtorch and a pair of pliers.

Grand journeys to far off lands. The kind of journey where someone who is "exotic" and personable can make a life for themselves by being the court foreigner.

Also: Judicial duels. They are unjust, unethical, and unproductive, but damn if I don't want to see white collar criminals have to fight the selected champion of all the folks they ripped off. Of course, being a billionaire would probably buy you a pretty good champion yourself, so we'd also have to bring back old concepts of honor to compel them to represent themselves.