This blog is excellent in general, particularly the AI posts. Yes they go extremely deep in places but the author freely admits that they are designed to be read selectively / skimmed in places.
Is there something up with your browser’s image rendering? I’m seeing headings, emboldened text, coloured inline links and a whole bunch of graphs and data tables. A little more vertical padding would help but apart from that it seems to me there’s plenty of formatting.
No space between paragraphs and blockquotes definitely hurts, and the subheading formatting is clearly not right. But the same content is posted on multiple sites. Maybe you'd find e.g. the Substack formatting more readable?