Reason not the need - as long as it is an "A" star

When asked to speculate further on why fewer British teenagers now display mature reasoning, Professor Shayler [of King's College, London] eschews local explanations and puts the blame squarely on television and computers. They take children away from the physical experiences on which later inferential skills are based, he thinks, and teach them to value speed over depth, and passive entertainment over active.

From The Economist (page 41, in fact). Subscription needed, I think.