80/20 programming language interoperability?

[Shelby Moore]

Will anyone comment or point me to prior discussion/work that applies to
the following?

I made some naive comments about Parrot's design focus here, which might
justify your correction or clarification:

http://lists.motion-twin.com/pipermail/neko/2010-January/002697.html

I enumerated my ideas at the following posts:

http://lists.motion-twin.com/pipermail/neko/2010-January/002691.html
http://lists.motion-twin.com/pipermail/neko/2010-January/002695.html