merits of Lisp vs Python

[Juan R.]

Kay Schluehr ha escrito:
> Note also that a homogenous syntax is not that important when
> analyzing parse trees ( on the contrary, the more different structures
> the better ) but when synthesizing new ones by fitting different
> fragments of them together.

Interesting, could you provide some illustration for this?

> The next question concerns compositionality of language
> enhancements or composition of even completely independent language
> definitions and transformers both on source and on binary level. While
> this is not feasible in general without creating ambiguities, I believe
> this problem can be reduced to ambiguity detection in the underlying
> grammars.

A bit ambiguous my reading. What is not feasible in general? Achieving
compositionality?