In practice that's what you could do with HyperLook on NeWS:

SimCity, Cellular Automata, and Happy Tool for HyperLook (nee HyperNeWS (nee GoodNeWS))

HyperLook was like HyperCard for NeWS, with PostScript graphics and scripting plus networking. Here are three unique and wacky examples that plug together to show what HyperNeWS was all about, and where we could go in the future!

https://donhopkins.medium.com/hyperlook-nee-hypernews-nee-go...

HyperLook SimCity Demo Transcript

This is a transcript of a video taped demonstration of SimCity on HyperLook in NeWS.

https://donhopkins.medium.com/hyperlook-simcity-demo-transcr...

Discussion with Alan Kay about HyperLook and NeWS:

Alan Kay on “Should web browsers have stuck to being document viewers?” and a discussion of Smalltalk, HyperCard, NeWS, and HyperLook

https://donhopkins.medium.com/alan-kay-on-should-web-browser...

Absolutely, since NeWS was largely the same concept, though with more intelligence on the PostScript side.