This is why MCUs are better. 0 is where memory starts, there is perfectly valid data at address 0. Pointers aren't the problem, NULL coloring pointers and the

This is why MCUs are better. 0 is where memory starts, there is perfectly valid data at address 0. Pointers aren't the problem, NULL coloring pointers and the compiler tracking that, that is the problem. In a sane world '0' would be a perfectly valid address just like any other.