Not sure if it's just Firefox, but a lot of things seem to be rendering incorrectly and very slowly for me. The text for the descriptions is very small compared to the rest of the text which makes it kind of hard to read. Also, on the Spectrum demo, the prism is displayed up and to the left of the light rays. After a few minutes the pages just grind to a halt so I can't really explore the rest.

It's not just Firefox, a lot of things are broken. For example, clicking on either ball in "The Falls" moves it up and lets you drag it, but they snap into the same place. The text also reminds me of how ChatGPT writes. Was this made with a LLM?