Some 1995 Criticisms of the Internet Still Resonate

"What the Internet hucksters won't tell you is tht the Internet is one big ocean of unedited data, without any pretense of completeness. Lacking editors, reviewers or critics, the Internet has become a wasteland of unfiltered data." 

That was written in 1995, before the Web really became what it is today. Some might say the critique is partly true, even today. But the larger point is that it was very hard to foresee what the Internet actually would become.

That we should be circumspect about other similar big innovations is the lesson. We can't really predict the impact of a truly-big innovation.