> It's actually a bad idea to try to retrofit a paradigm on top of an existing language. You should build tools that do one thing well, and if they no longer suit your style of programming, you should switch to a tool that is designed to fit your needs.

I categorically disagree. Nearly any program has pieces that benefit from OOP and pieces that benefit from FP and everything in-between. The most prevalent and useful languages support multiple paradigms (C++ is a mess for other reasons).