The compiler's solution to fitting a 64-bit number into a 32-bit processor? Just use two chairs. Pure elegance. This is basically how your compiler handles it - splitting that chunky 64-bit integer into two 32-bit pieces and hoping nobody asks questions about the implementation details. The overhead is minimal, just like those flimsy plastic chairs. And yes, this is exactly why your code sometimes runs slower than expected on older hardware. Your compiler is just sitting there, awkwardly balancing on two chairs, pretending everything is fine.