It's talking about the trade-off between dynamic dispatch and more static constructs. Basically it has to do with when and how overridden functions, class metho

It's talking about the trade-off between dynamic dispatch and more static constructs. Basically it has to do with when and how overridden functions, class methods, struct members etc. are chosen. Generally, static dispatch is a lot faster, but dynamic dispatch makes polymorphism a lot easier, which is an important feature of object oriented programming. Really, the details of the different language designs are mostly only important if what you are doing is highly performance critical or if you are limited by your runtime (I.e writing a bootloader or bare-metal OS code/firmware).