Did not realize there was such a short degree of Kevin Bacon between Hypercard and Hypermedia. Ars has an interesting 30 year retrospective [3] where they discuss how Hypercard almost immediately beget Mosaic.

> "I got a HyperCard manual and looked at it and just basically took the concepts and implemented them in X-windows"

Also some pretty neat commentary from the author Bill Atikinson about realizing how close he had been to developing the entire world wide web browsing experience.

> "I grew up in a box-centric culture at Apple. If I'd grown up in a network-centric culture, like Sun, HyperCard might have been the first Web browser. My blind spot at Apple prevented me from making HyperCard the first Web browser."

Myst was apparently also a direct decedent.

> the Cyan software company originally wrote their hugely popular puzzle/adventure game Myst as a HyperCard stack.

Reading back through these, it actually made me wonder a bit at how few storyboard, or still frame games, or click-a-choice adventures there are in web pages. It seems like such an obvious format for Myst, 7th Guest, ect... games where you click and drag objects, and choose buttons or areas to move from Myst scene to Myst scene.

Another topic in that vein is Scott McCloud's work with the infinite canvas and Follow That Trail. [4]

[1] https://en.wikipedia.org/wiki/HyperCard

[2] https://en.wikipedia.org/wiki/Hypermedia

[3] https://arstechnica.com/gadgets/2019/05/25-years-of-hypercar...

[4] http://www.scottmccloud.com/1-webcomics/icst/icst-4/icst-4.h...