Causative in nature of a number of effects.

Mangin turned himself into an eccentric figure, and Barnumized the business of selling pencils. He attracted attention, says Mr. Dreier, by driving about the streets in an ornamented carriage drawn by two bay horses. With the help of a servant he changed his clothes in plain sight, substituting a medieval costume for his business suit. […]

But a flap steak with marrow butter and parsley toasts was pretty undistinguished, and the brined and smoked baconed pork chop tasted of nothing but smoke and salt--though maybe my taste buds were just numb by then.

If you have worked at a help desk, you have probably experienced the phenomena known as “confessional debugging.” A person is explaining the problem and as they do so, it suddenly dawns on them what the problem is. The act of explaining the code to someone makes you think a little more clearly, not skip steps, and so on. Confessional debugging is surprisingly effective.