> What I'm not sure about is how performant they were, They were sufficiently performant to be used in anger. I mentioned some of the real world uses > or whe

> What I'm not sure about is how performant they were, They were sufficiently performant to be used in anger. I mentioned some of the real world uses > or whether large systems could be built with them I mentioned the muMATH computer algebra system, built with muLISP. I think that would count as a large system, at least by the standards of the time.