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Re: Weirdness in Dylan spec

I'd say that the Dylan book describes the delivery system rather than the
development system. The development system may allow you to redefine anything,
maybe prompting you to resolve conflicts. The delivery system needs stable
assumptions for efficient compilation.
I think the problem with EVAL is space, not time. If EVAL is used in a program,
you cannot decide before runtime what parts of CL/Dylan/whatever it will use,
so you have to include all the language. Without EVAL, you can generate small