Hi Thierry
when I say “everything started” I mean the strong polarisation of the community and the coalition of one “side” of it under a flag (that particular slide and the “CSS in JS” name). I don’t mean technically, I am sure there were already many other alternative solutions and technical propositions out there, at that time. But that was a key moment: like often happens in history, some things simply become a trigger, a catalyst of underground movements and changes of directions.