[jrapdx3]

Whether functionality should be contained in the "core" or in libraries is often a subject arousing contention, but I think it is, or can be, largely a technical distinction.

Where it matters is how well the functionality is integrated with the core language. The argument goes that in Scheme it is less regularly the case that libraries are complete and consistent vs. CL.

The effort of the R7RS-large work group to create a "standard" library of extended functionality is ongoing, but in a year or two should produce a language standard that could create consistency across Scheme implementations, effectively similar to CL.

Of course, how well that works out depends on the willingness of implementors of Scheme to make it so. Let's hope that they will do that.