Web.py is arguably an example of shoddy engineering in explosive software startups that did not become a medical experiment.

"The results show that foremost among the causes of growth in U.S., German and Japanese manufacturing value added is electric power consumption."[1] Now I wouldn't pay too much attention to the word "causes" in there, but...

Define your terms too precisely and there would be nothing to think about.

[1]"Engineering and Economic Growth" http://www.sciencedirect.com/science/article/pii/S0954349X04...