- Is Lua "becoming" a 'serious' language on its own, like Python or Ruby? I
mean, not just to extend other software...
Rather than considering that "Lua just extends other software [in C++]", you might prefer to reword it "Lua lives in symbiosis with C and C++, so that you can use the right tool for the right job, rather than a single wrong tool for everything".
If you're into number crunching, this symbiosis should be especially invaluable to you.
--
Fabien.