Comment by dataviz1000

That is awesome. A list of power tools on Amazon went from 2.5MB of HTML to 236KB of markup. That is huge! Wow, thank you for sharing.

This is half the equation. Also, lot of the information in the markup can be used to query elements to interact with because it keeps the link locations which can be used to navigate or select elements. On the other hand, by using the stacking context, it is possible query only elements that are visible which removes all elements that can't be interacted with.