[no subject]

[Richard M. Stallman <RMS at MIT-AI>]

The distinction between vectors and arrays is only a compromise
for the sake of old-fashioned architectures.  It is much less
clean than having only one kind of object.  It is ok for the
Lisp machine to accommodate to this compromise by defining
a few extra function names, which will be synonyms of existing
functions on the Lisp machine, but would be different from those
existing functions in other implementations.  But it would be
bad to implement any actual distinction between "vectors"
and "arrays".