What’s interesting to me beyond the invention itself is all the technology that was developed around it. For example my friend’s Dad had a Nakamichi cassette pl

What’s interesting to me beyond the invention itself is all the technology that was developed around it. For example my friend’s Dad had a Nakamichi cassette player that would physically flip the cassette to play the other side. And on the other end of course using a pencil to advance the tape or wind up slack if it accidentally got caught in the player.