This belief shows up time and time and again and is nearly always false. We had the written word before the internet, and before the printing press, so blogs are just like a hand-written letter. Gossip has always existed, so twitter does nothing new. There have always been things which eat at our impulse control, such as sports gambling and casinos, so smart phones are nothing new. etc.

What this view really fails to understand is that the constant here is human nature. Human nature is built more or less the same way as it has been for thousands of years. What changes is how technology allows human nature to play out, whether or not any given technology interacts poorly with human nature. New problems can exist purely based on scope, scale, reach, ease-of-use, lack of friction, etc.