> even the music is quite nice

Thanks for mentioning that; the music does not play in Safari, so I opened Firefox in the background for the music while zooming in Safari via trackpad scrolling (which doesn't appear to work in Firefox).

The wonderful "Powers of Ten" video has been mentioned elsewhere in the comments; see also "The Simpsons" take: https://www.youtube.com/watch?v=ycvlJ9XMd94 .

Lots of fun - thank you, mattmar96!