How CRTP achieves polymorphic behavior without virtual table pointers (0 virtual dispatch overhead):

template<typename Derived>
class Base {
public:
    void Process() {
        static_cast<Derived*>(this)->ExecuteImpl();
    }
};

class Worker : public Base<Worker> {
public:
    void ExecuteImpl() { std::cout << "Worker processing\n"; }
};

The compiler resolves Process() calls at compile-time via static dispatch, allowing inlining with zero vtable pointer overhead (saving 8 bytes per instance)!

CRTP is heavily used in high-frequency trading and game engines where virtual method calls in hot loops incur branch mispredictions.

In C++23, 'Deducing this' (explicit object parameters) makes CRTP even cleaner without template base class inheritance syntax!