Mark Malone - Why the Platform?
Why do platforms outpace traditional businesses?
The short answer is a lower cost basis. An Amazon doesn't have location and inventory expenses of a Sears. Facebook doesn't have to create content. Uber doesn't have to buy taxi cabs and hire drivers to staff them.
The larger lesson is to figure out where you contribute the most value, and eliminate areas that don't bring value.
But everything has a life cycle. Eventually somebody will figure out how to bring a better value to market than a Facebook or Amazon. Stay tuned. :)