I’d like to second this comment, at least broadly. I’ve seen the e notation in blog posts and the like and I’ve struggled to put the × 10
in the right place.
One of the reasons why I dislike trying to understand numbers written in scientific notation is because I have trouble mapping them to normal numbers with lots of commas in them. Engineering notation helps a lot with this — at least for numbers greater than 1 — by having the exponent be a multiple of 3. Oftentimes, losing significant figures isn’t an issue in anything but the most technical scientific writing.
You can start with the Dan Luu aesthetic and then redesign your site, either incrementally or in big leaps, possibly repeatedly, later. Redesigning websites is totally a thing. https://gwern.net gets near-constant upgrades, and all sorts of famous web-nerd bloggers have improved their sites’ designs over the years and now decades.
One thing Substack does that you can’t get super-easily from a static site is comments and emailing your readers with new articles (feeds are, unfortunately, mostly a nerd-only technology).