That is the topic of the article I am about to write.

And they arent replaced in the sense of added features. Whatever the delivery mechanism, for music lets say, we still have access to a great deal more music than we did before for less money.

So if we are looking at 10 million songs for free on YouTube, how is that reflected in GDP. It isnt as if people lost access to the music. They actually gained.

This is why GDP is outdated. It doesnt capture what is taking place. It certain does when there are price increases but price reduction or elimination, the value in there isnt reflected.