I too recall early encounters with Smalltalk (albeit 1989), and also recall that feeling of missing grep - and it was only years later that I realised I had mis

I too recall early encounters with Smalltalk (albeit 1989), and also recall that feeling of missing grep - and it was only years later that I realised I had missed a hugely important point... possibly the most important point. Smalltalk is so elegant, malleable and simple that it was only 5 lines of code to implement a more interactive grep... d’oh. Why didn’t I think of it at the time? Too cocky? Code completion was trivial to implement even back then, particularly as code is an object like anything else. Sometimes you miss the obvious and hold yourself back. Sadly the industry hasn’t innovated much since PARC, those much mailigned Smalltalk images are now called Docker ;)