Library isn't RAM. If library books were to be RAM, you'd clone yourself many times and stand in front of each book. And, all of you would share mind. Then per

Library isn't RAM. If library books were to be RAM, you'd clone yourself many times and stand in front of each book. And, all of you would share mind. Then performing binary search in the library is sort of okay. Or, it could be organized in a circle where you are at the center. You don't move. But you pull/push each book with a magnet. But, RAM is more like the former. So many parallel flip flops. No wonder it's expensive.