For more than a decades I was a meet-up organizer
My biggest meet-ups were machine learning / AI / data science related meet-ups.
I also organized some smaller science meet-ups, too
When my wife got pregnant with our first child, I stopped organizing. Being a parent took priority.
My kids aren't babies anymore. I started organizing again in 2025
FediCon is partially a result of that
Well that, and getting excited by the Social Web track at FODSEM and then Fediverse House at SXSW.