If Neal Stephenson wrote primary school textbooks for a living, the next few generations would be nothing but engineers and scientists.
Two months it took me to read this. Two. Months. With breaks, but still. This book is HUGE, both in size and story. Stories. No, STOREYS. 4 main characters in 2 timelines, their storylines all building on each other, and diverging, merging, and (apparently) diverging again. Countless "Aha! - No, wait." moments. Endless inappropriate snortgiggles. Glorious characters and a satisfying ending. Hundreds
of pages on maths and cryptanalysis, never boring.
Blew my mind. Quicksilver was awesome, but this right here goes to 11.