Empowering innovations transform something that is complicated and expensive into something that is so much more simple and affordable that a much larger population can enjoy it.

Efficiency innovations arise in industries that already exist. They provide existing goods and services at much lower costs. They are not empowering. Efficiency innovators become the low cost providers within an existing framework.

A sustaining innovation makes better products that you can sell for better profits to your best customers.

Clayton M. Christensen Quotes