A nice reminder that many things have already been done. Often the best question isn't: "why hasn't this been done yet?", but rather "Why did it fail the previous times?".
I've always had a bizarre nostalgia for telegraph operators. When I was a Boy Scout as a kid, we had to learn both morse code and semaphores. I wonder if they still learn them today (I suspect not).
As a Venturer Scout, about a decade ago, I got my advanced amateur radio license and, for a while, started working on Morse code. Never did get the 5wpm Morse qualification, and I forget the code now.
Which, if you don't want to click through, looked like this: Wales Parisward smorning omnistation cheered stop he said friendship proFrance unceasing.