There will always be shifts in media

I stumbled upon a short but really important post by Steve Rubel in which he gives us an insightful graphic:

He names 2 learnings out of this graphic which I think we all should remind ourselves frequently:

• There will always be shifts in media
• One format never supersedes another

At first sight this has nothing to do with Search, but understanding this shift in media definitely helps understanding the development and future of Search.