The benefits have to outweigh the cost. We're finally reaching the edge of silicon based technologies, where improvements are not guaranteed or incremental. The

The benefits have to outweigh the cost. We're finally reaching the edge of silicon based technologies, where improvements are not guaranteed or incremental. There's still, obviously, a lot of possible improvement, but it's finally worth seriously looking at alternatives. You'll likely start to see optical networking in cars first, fwiw.