Thanks a lot for this very nice comment (especially the last few words ;) ).
This text is really the result of how I introduce particle physics to the general audience today. The content has evolved over time, before getting to its current version. Even in this STEMsocial version, I changed a few things relative the previous version. I had so far had the chance to give it as a lecture here in Paris (several times), but also in Johannesbourg and Montreal. A much earlier version of it (that has now very little common grounds with this one) was presented at the SteemSTEM meetup at CERN (almost) 4 years ago.
I will try something a bit different soon at local middle schools. There, I will focus a bit less on research but more on the job of being a physicist that includes research, but that is not restricted to research. Actually, this could also be a nice topic for a blog (I note it for the future).
In terms of time, I must say it took me like two days (but I didn't work on the text on one go; it was scattered all over the week-end and a bit on Monday).