If a servant strives to please his master and studies and takes pains to do it, I believe there are but few masters who would use such a servant cruelly.
When you make a decision, you need facts. If those facts are in your brain, they're at your fingertips. If they're all in Google somewhere, you may not make the right decision on the spur of the moment.
Even if you're playing Brahms or a Beethoven concerto, you've got to have a different vantage point, slightly, each time.

