Unanticipated

In the course of a debate about the unexpected consequences of the internet over at Club Troppo, I contribute
"Another totally unexpected development was the growth of privacy.  I can remember when the value of the telephone system was specifically linked to the existence of the telephone book, as the automobile was to the highway system, one inconceivable without the other. Now we have the situation where there are no internet phone books, and access to any person's address is essentially individually negotiated.  I did not see this coming.  Yes, there are threats to privacy, but imagine trying to launch the telephone today; "You want all this information - name, home address, wealth - to be just out there for anybody to access?  A continual never-ending data breach?"