You may (or may not?) find this interesting, by one of the cuis-smalltalk maintainers: [LiveTyping](https://github.com/hernanwilkinson/LiveTyping https://githu

You may (or may not?) find this interesting, by one of the cuis-smalltalk maintainers: [LiveTyping](https://github.com/hernanwilkinson/LiveTyping https://github.com/hernanwilkinson/LiveTyping) is a project which keeps track of types (and shows them to you) as they become known to the vm. PS: cuis smalltalk = a less-bloaty "distribution" of squeak (I say "distribution" rather than fork, as that more closely captures the spirit. Its just a thorough culling of the core classes, and stripping out of extraneous stuff - all running on the same squeak vm)