“The full user-mode address space on x86-64 is 128TB, and a randomly-generated 47-bit address is very unlikely to begin with 15 consecutive zero bits.”
No conspiracy, just math. ASLR picks random spots in 128 TB, and the bottom 2 GB is a rounding error. The one page that’s always there holds the clock so apps skip a kernel call. Raymond Chen has been answering these for twenty years and he’s still the best documentation Windows has.