This looks quite interesting! You gave him a lot of reading though, were there reasons you chose those books over the whitepaper (that'd be my concern but they're probably good at quickly reading documents anyway)?

Did you keep communication channels open or does it not work like that there? If you did there were lots of promising reports you might be able to dive into and see if they're worth sending - on the scale crypto is used for illegal activities but some of those quotes do cover it very well.