It's about Unix read() and write(), not human linguistics as I thought when I clicked.
Very interesting nonetheless.
I think the same basic lessons apply. If you read something in a human language then when you're done, you know the information has been received, you know if there are any problems understanding it, etc. If you write something, you have no idea if anyone will actually read it, you don't really know if it will be understood or if there are problems with it, etc.
There's another potential asymmetry between the number of times you write something vs. how many people read it/how many times it is read.
Yes, the title could be updated to reflect that.
I was also imagining an article about people who know how to read in a particular script but haven't learned to write it. That would be an interesting article!