[xvilka]

CommonLisp really should evolve to update the language up to the modern standards and become more functional and better typed.

[kanbankaren]

It is already typed. Types are optional. I think types have been available for the last 30 years? Check the specs.

[tmtvl]

It is typed, but it's not very well typed. List is 'null or cons' for instance, not 'null or (cons * list)'. Also lack of generics so you can't have a class which holds an element of a generic type which can be determined later on in the compilation process (e.g. a weight-balanced tree which holds elements of a given type).

[xvilka]

I wrote "better typed", not just "typed".