Maybe it's because I'm French and the author is American (I guess?), but this post made me anxious. Putting so many rules and so much science on something that should be fun and spontaneous feels so wrong to me. Maybe a cultural thing. But I would never go to a party hosted by someone who thinks in statistical terms and uses a dedicated app to invite guests. I admit there are a few interesting tips though. Especially…
Americans tend to have larger, more casual social circles, probably. Having hosted parties in both the U.S. and Europe, the "flake rate" in Europe is much smaller, but the parties are also smaller, less frequent, and planned further ahead of time.
It's astonishing to me how many comments around here are lumping everything together under specific nationalities.