Comment by Sesse__

13 hours ago

CSS is Turing complete :-) You can find pure-CSS implementations of Game of Life, for instance.

The implementations I have seen rely on the inclusion of HTML form elements, and a manual step to update the state.

So in that sense CSS + HTML + User Interaction is Turing complete. But that is a different language then CSS, even if a part of that language happens to be written in CSS.

I don’t think that’s true, unless you count hardcoding the state evolution into CSS variables, one var per cell per step.