Comment by marcosdumay

> I would ask you - why?

Optimally, you'll want to build your full app in a single language, frontend, data queries, everything. That eliminates every problematic interface where you have to re-encode values, verify types and other invariants, connect different runtimes, abstract foreign behavior, etc. (Somehow the JS developers talking about isoiconicity only cite code reuse... And the Lisp ones focus on metaprograming.)

We have a variety of good application languages, so it's a safe bet that one can create a not horrible one; we also have a few standards for IPC and some very safe literature on how to integrate them with a language. Foreign interfaces are always iffy, but it's also settle how to create a not horrible one. The most risky part is data querying, so it makes sense to start with a proven implementation here.