In my previous essay I discussed the theory that love is a mechanical matter. That is, love behavior is the workings of chemistry, neurons and genetics. This view, as noted in the essay, was supported by Larry Young’s research involving voles. This mechanistic view of love has some interesting implications, and I will consider one of these in this essay, the virtue of fidelity.

While humans (such as King Solomon and various officials in the current Trump regime) sometimes have polygamous relationships, the idea of romantic fidelity has been praised in song, fiction and in the professed values of modern society. Given Young’s research, it could be that humans are biochemically inclined to fidelity in that w form pair bonds. Sexual fidelity, as with the voles, is another matter.

While fidelity is publicly praised, an important question is whether it is worthy of praise as a virtue. If humans are like voles and the mechanistic theory of human bonding is correct, then fidelity that grounds pair-bonding would be a form of addiction, as discussed in the previous essay. On the face of it, this would seem to show that such fidelity is not worthy of praise. After all, one does not praise crack addicts for their loyalty to crack. Likewise, being addicted to love would not make a person worthy of praise.

An obvious counter is that while crack addiction is seen as bad because of the harms of crack, the addiction that causes pair bonding should be generally regarded as good because of its consequences. These consequences are those that people usually praise about pair bonding, such as the benefits to health.  However, this counter misses the point: the question is not whether pair bonding is good (it generally is in terms of consequences) but whether fidelity should be praised.

If fidelity is a matter of chemistry (in the literal sense), then it would not seem praiseworthy After all, a lasting bond that forms is merely a matter of a mechanical process, analogous to being chained to a person. If I stick close to a person because I am chained to her, that is hardly worthy of praise—be the chain metal or chemical.

If my fidelity is determined by this process, then I am not acting from the virtue of fidelity but acting as a physical system in accord with deterministic (or whatever physics says these days) processes.  To steal from Kant, I would not be free in my fidelity—it would be imposed upon me by this process. As such, my fidelity would not be morally right (or wrong) and I would not be worthy of praise for my fidelity. For my fidelity to be morally commendable, it would have to be something that I freely chose as a matter of will. At least for thinkers like Kant.

One concern with this view is that it seems to make fidelity a passionless thing. After all, if I chose to be faithful to a person on the basis of a free and rational choice rather than being locked into fidelity by a chemical brew of passion and emotion, then this seems cold and calculating—like how one might select the next move in chess or determine which stock to buy. After all, love is supposed to be something one falls into rather than something one chooses.

This reply has considerable appeal. After all, a rational choice to be loyal would not be the traditional sort of love praised in song, fiction and romantic daydreams. One wants to hear a person gushing about passion, burning emotions, and the ways of the heart—not rational choice.  Of course, an appeal to the idealized version of romantic love might be a poor response—like any appeal to fiction. That said, there does is a certain appeal in the whole emotional love thing—although the idea that love is merely a chemical romance also seems to rob love of that magic.

A second obvious concern is that it assumes that people are capable of free choice, and a person can decide to be faithful or not. The mechanistic view of humans typically does not stop with the emotional aspects. Although Descartes did see emotions, at least in animals, as having a physical basis—while leaving thinking to the immaterial mind. Rather, they tend to extend to all aspects of the human being and this includes decision making. For example, Thomas Hobbes argued that we do not chose—we simply seem to make decisions, but they are purely deterministic. As such, if the choice to be faithful is merely another mechanistic process, then this would be no more praiseworthy than being faithful through a love addiction. In fact, as has long been argued, this sort of mechanistic view would seem to dispose of morality by eliminating agency.