this post was submitted on 28 Feb 2025
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Wrong. Well, at least incomplete.
You need user interaction (e.g., clicking on a button) and HTML & CSS for Turing Completeness, apparently.
It's a programming language regardless of it's completeness. You give a computer instructions, in a DSL, it gets interpreted.
Don't gate keep.
Who is “it” which interprets things? Is it part of HTML/CSS?
The browser. When it reads the HTML and creates a DOM based on the provided instructions.
So where in that can I encode an arbitrary program? Like one could do in JavaScript?
Create a table of checkboxes with the rule 110 CSS applied.
Translate your program to a rule 110 program and put it in the top row of the table.
Advance the computation by checking the marked (orange in the example) checkboxes row by row.
Example
Well yeah, with CSS and user interaction it’s understandable… as I’ve linked above.
The question was if this is possible for purely-HTML markup descriptions without CSS nor clicks, and it was a rhetorical one.