I had forgotten about this Housing hearing that took place this morning on the topic of NASA's technology development programs: House hearing on NASA technology and competitiveness - Space Politics.
The written testimonies are available here. For example, here is the testimony (pdf) of Mason Peck, NASA's Chief Technologist.
Naveen Jain argues that outsiders can often come into a field and make key contributions and even revolutionary change: Rethinking the Concept of "Outliers": Why Non-Experts are Better at Disruptive Innovation - Forbes.
Some ideas on engineering on a really big scale if climate change becomes a major threat: Strategies for a Changing Planet: If All Else Fails... - Popular Science.