Eventually, my father found the answer to his 
question in a book by Karl Popper. One evening he 
was reading Karl’s book Objective Knowledge  and 
in it Popper made the crucial statement. He said, 
“A scientific statement is worded in such a way 
that it can be disproven.” Well my gosh, it took two 
years to find that out. And nobody, we had the 
best brains in the university in our place—nobody 
came up with that one. “Well, that’s easy,” he said. 
“OK, we can state things in a way that people can 
test them.” And so, we began doing that.

Now remember the project we’re working on is that 
of revising Understanding Media . So we had two