Love this point, from a worthwhile thread https://twitter.com/geoffreylitt/status/1240291135106494466

The GUI/CLI dichotomy which is quite pronounced in the Unix world, is very blurry in some other models, e.g. Lisp Machines: Updated link! https://futureofcoding.slack.com/archives/C5T9GPWFL/p1578217655400200?thread_ts=1578217655.400200&cid=C5T9GPWFL

As far as I can tell, that is a link to this Slack.

No such dichotomy in Smalltalk either. The common point between Smalltalk and Lisp machines: the system comes with a GUI by default, it’s not an optional add-on.

Yeah - the command line is a just a 'special kind of UI'. This position can open up quite a bit of fluidity in how powerful command interfaces may be integrated with other visual models. The Unix legacy of teletype machines informs much of the primitive stdio model (streams of dead text), which is quite unfortunate on modern machines IMO.

Indeed, but it’s not just the legacy of the teletype, it’s also the constraints of computers shared by several users. Smalltalk and the Lisp machine were designed for high-powered personal desktop machines, which were expensive luxury items. Today’s powerful PCs slowly grew out of yesterday’s low-power PCs, not out of Lisp machines or Altos.