Earlier quoted context omitted.
I have to admit I still have basically no idea what he's talking about when he says 'messaging'. A practical example would be useful for us non-CS-degree programmers who don't speak any of the CS lingo.
The idea is to replace "calling a function" with "sending a message". Traditionally a function call is fixed at compile time (with some exceptions such as function pointers). In C a function is just an address; if we want to call foo(), we must have that function available at address &foo. C++ added flexibility by allowing there to be multiple functions called foo() with and a set of vtables[1] that store the actual…
thanks, that was a nice explanation