Answer:
Destruction of thought
Step-by-step explanation:
Selection 1 of that article by Nicholas Carr, shows that the net can destroy our train of thoughts through the pop up of so many messages that make it difficult for us to concentrate and think deeply.
The author here shows that for us to truly concentrate and think, we do not need our gadgets around as they can destroy our train of thoughts. The net may give us the facts but will not give us brilliance.