Did you see <i>my</i> list in reply to that comment? Genera and Oberon are on it. I&#x27;ll consider Mesa&#x2F;Ceder and Smalltalk. The former was in the Hansen overview I started with. Might deserve individual mention, might not. Throw in your opinion on why if so as I just can&#x27;t recall its traits.<p>Smalltalk, too. Especially as the topic is stuff that&#x27;s <i>still</i> better than UNIX in some attribute. I haven&#x27;t studied it enough to know what you like about it past probably safety and great component, architecture.