Three rationalists walk into a bar.

The first one walks up to the bar, and orders a beer.

The second one orders a cider.

The third one says "Obviously you've never heard of Aumann's agreement theorem."

An exponentially large number of Boltzmann Brains experience the illusion of walking into bars, and order a combination of every drink imaginable.

An attractive woman goes into a bar, and enters into a drinking contest with Nick Bostrom. After repeatedly passing out she wakes up the next day with a hangover and a winning lottery ticket.

Three neoreactionaries walk into a bar

"Oh, how I hate these modern sluts" says the first one, watching some girls in miniskirts on the dancefloor "We should return to the 1950s when people acted respectably"

"Pfft, you call yourself reactionary?" replies the second "I idolise 11th century Austria, where people acted respectably and there were no ethnic minorites"

"Ahh, but I am even more reactionary then either of you" boasts the third "I long for classical Greece and Rome, the birthplace of western civilisation, where bisexuality was normal and people used to feast until they vomited!"