Creative Destruction: The Damage Is the Mechanism
New methods can only grow by taking resources from old ones. The productivity gain and the displacement are not cause and side effect — they are the same event seen from two sides.
Concept
Competitive Exclusion Principle
Competitive Exclusion: Two Things Cannot Want Exactly the Same Thing
Species with identical needs cannot coexist — a small consistent advantage compounds until one is gone. Which means anything living side by side must differ, and finding how is informative.
Competition: Better at What, Exactly?
Two firms selling something interchangeable can only compete on price, and every improvement gets matched. The useful question is not how hard to compete but what you are competing on.