HTML is a powerful way to understand the structures and dimensionality of mathematics and language.
Everything is defined in a precise way, with actual symbolic constructions created from its parts -- which can be listed and defined with precision.
HTML is all about "containers" -- very analogous to the concept of "set"
HTML is all linearly sequenced
Everything has a start and stop point
Those start and stop points are boundaries -- "actual boundaries" -- within which "something" exists.
The range between those boundaries is an "interval"
An interval is always linear -- a range from A to B -- though its dimensionality might be "multi-dimensional"
"You guys are fascinated by micro-complexity --I am fascinated by macro-simplicity."