In the document he mentions that the eMail latency between EU/Japan and US was 2-3 days because of the number of uucp hops that the mail needed to make. He cite

In the document he mentions that the eMail latency between EU/Japan and US was 2-3 days because of the number of uucp hops that the mail needed to make. He cites this as a reason why it was impractical to collaborate. Perhaps those issues persisted and once they were gone the culture was embedded?