64-bit Address Space Layout Randomization (ASLR) is significantly more robust than on 32-bit systems. This is a defensive technique where the memory locations of program data are randomized to prevent exploit predictability. By forcing the Reader into the 64-bit ecosystem, Adobe effectively forced attackers to aim at a moving target in a much larger field.

To understand the "deep piece" of the 64-bit Reader, one must look past the icon and into the architecture. It is a story of transition, of memory, and of the chaotic landscape of the modern document.