Intensive-care medicine has become the art of managing extreme complexity and a test of whether such complexity can, in fact, be humanly mastered.

NEWYORKER: The Checklist

Most new aircraft experience issues of this sort, an inevitable consequence of a test program becoming a production aircraft and the sheer complexity of modern airliner design.

CNN: How Boeing can bounce back from Dreamliner problems

There's also concerns that the test was too binary and didn't reflect the complexity of the whole brain.

ENGADGET

Test pilots strapped themselves into machines of barely controlled power and complexity, and a quarter of them were killed on the job.

NEWYORKER: The Checklist