“Let’s say Mozart traveled ahead in time and joined us right now at this table for lunch—he would be amazed to hear music coming out of that tiny box. In his world, there were no recordings. When he heard music, there was always an orchestra present. Seeing this speaker, he might mistakenly conclude there is an orchestra hidden behind the wall—or even a miniature orchestra inside the speaker itself. There would be no other options within his intellectual grasp. He would never conclude that the music was in fact hovering silently all around us in the form of radio waves and was somehow being
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