"Since COSIC was based in Leuven, Len was living in Belgium during Bitcoin’s development. This is salient given that a number of facts suggest that Satoshi was based in Europe...

Satoshi’s writing exhibits spelling and word choices idiosyncratic of British English such as “bloody difficult”, “flat”, “maths”, grey”, as well as the dd/mm/yyyy date format. However, Satoshi also refers to Euros rather than pounds. These clues leave us with a paradox: they suggest Satoshi was European, yet someone with the requisite skillset and exposure to Bitcoin’s primary influences would likely have been American. Much of the Cypherpunk community coalesced conferences and meetups, part of why a disproportionate number hailed from America and especially SF. The jobs where one could have gained cutting-edge professional infosec and crypto experience were similarly concentrated in the US.

Strangely enough, Len used the very same British English as Satoshi even though he was American."