The problem is not the answers but the having of thema t fingertips. There is value in the slow process of looking things up in dictionaries or stepping through exercises. The downside of instant fulfillment of curiosity is arguably a shallow approach to knowledge; as soon as something become difficult or obscure, there's the urge to summon the answer from the internet, and if it's not immediately forthcoming either lose interest or expend energy rationalizing the default answer.