1. The choices you have to make in talking are unbounded, while in sex they are limited. It is hard to make all the decisions in thought that are needed to say the right thing next.

2. There is an infinite number of wrong things to say, and undoing the damage is sometimes extremely painful. There is a very limited number of mistakes you can make with sex, and they are usually quickly put right! :<> )

3. It is extremely easy to be painfully misunderstood in speech, given the highly volatile, plastic nature of the individual mind. The simple physical choices of action in sex are pretty unambiguous.

4. The rewards are much more obvious in sex and the fact that the rewards of reall communication can be a thousand times richer is easily overlooked.

5. In talking, you have to take care to respond correctly. In sex, the mechanisms are semi-automated.

A