Of the technological revolutions that Kurzweil discusses as underlying The Singularity, which does he position as being "the most profound"?

For the left-handed 10 percent of the population, language is

A) always housed in the right hemisphere. B) always housed in the left hemisphere. C) most often housed in the right hemisphere. D) most often shared between the hemispheres.

The aversive motivational state that results when some behavior we engage in is inconsistent with our attitudes is known as

a. dissonance b. arousal c. discrepancy d. contrast