Nobody can see the whole thing at once.
We figure the Internet now supports more than 700 million pages. In a few years, the total will be 10 times that. According to Vinton Cerf, speaking at the Internet Society's annual meeting last month, the number of 'net connections will exceed phone connections by the middle of the next decade. My own forecasts puts a billion devices on the Internet by 2004. There's bound to be pain involved.