Do you believe in "soulmates"?
Reply #2 – 2003-10-20 23:44:19
Does a non-belief in the existence of souls preclude a belief in soul-mates? I voted 'no', but I think your definition either guarantees or precludes the existence of a soul-mate (within a high degree of probability) depending on how you look at it. I've actually looked at this problem in the past, and came up with some somewhat discouraging conclusions. Looking at divorce statistics (and the number of unhappy relationships that remain intact), it is even more discouraging. If you could repeat your life over and over, choosing a different partner each time, quantifying the total lifetime happiness you achieved with each one*, until you've tried every potential partner on Earth, there would be exactly one who resulted in a maximum happiness value. Excluding the highly improbable case that there was more than one person who caused you to achieve precisely this maximum happiness value, there would be exactly one person on Earth with whom you were soul-mates (finding said person without supernatural intervention is likely an intractable problem.) However, I believe most would agree that the definition of a soul-mate implies mutual happiness. I.e. you are soul-mates if and only if you can achieve maximum happiness by being with your partner, AND they achieve maximum happiness by being with you. It is quite possible (indeed, likely) that in a given relationship one person will be quite blissful and the other could be miserable, indifferent or just moderately happy. In spite of the fact that on partner's happiness is fairly dependent on the other's, I assert that it is highly improbable, given the number of potential couplings (on the order of 10^19, depending on how you calculate it), that there exist a significant number of soul-mate pairs on Earth. Even if you were to relax the definition slightly by making a pair soul-mates if the sum (or product) of their two happiness values were to be considered, it is still most probable that an optimal pairing would not exist for The vast majority of people. An example: Let's look at a world with just six people (we'll call them A through F). After trying all the possible couplings, we come up with the following happiness values (to find the happiness for X in a relationship with Y, look at row X and column Y.) A B C D E F A ---.-10 +39 +35 -10 -25 B -20'---.+18 -17 - 7 +10 C - 9 +22'---.+20 -35 +39 D +45 -33 +50'---.+20 -20 E +30 -13 -25 -10'---.-50 F -15 +40 +21 +10 -20'--- Here, we can see that A is crushing on C, who really is happier with B, D and especially F. F doesn't dislike C, but would rather be with B. B on the other hand, likes Mr. Popular C, who happens to also be D's favorite. D is the only one who can tolerate E, who in turn has a fondness for A and various degrees of loathing for everyone else. A, on the other hand, doesn't much care for E's sociopathic attitude. While we see here that A and D would get along quote well, neither is each other's first choice. Likewise, D would be very happy with C, but isn't even C's second choice. Doesn't look like any of these people have a soul-mate. If we look at the sums of each pairing, we get: B C D E F A -30 +30 +80 +20 -40 B +40 -50 -20 +50 C +70 -60 +60 D +10 -10 E -70 A and D clearly are soul-mates according to these numbers, though neither has achieved as much happiness as they could have with someone else. However, C has no soul-mate because their maximum happiness would be achieved with D. F would also be best off with D, and B would be best of with F. Poor misanthrope E doesn't even make anyone's second choice. The best they can hope for is to bump of D and C (the only person to ever like him) and get a life of mediocrity with A. The best result for global happiness is for A to give up on the possibilty of being with their soul-mate commit to an unhappy relationship with E and B and F to get together as well as C and D. Everyone has to settle. If our soul-mates meet up, C and F can also do pretty well, but B and E will both probably end up being all alone. So in conclusion, in a population of significant size, while there may a slim chance of a handful of soul-mate pairs, they are unlikely to meet each other. The vast majority of people will have to settle, though many or even most will find some happiness (if not maximum happiness). Some people are screwed no matter what. Even the numbers I chose for my example are optimistic. Most people are going to be to be incompatible with any given person (negative happiness value) for being the wrong gender, too little in common, far too young/old, etc., which further reduces the probability that they'll find a suitable partner. * Method for quantifying total lifetime happiness (PATENT PENDING): Calculate the total quantity of neurotransmitters, hormones, etc. relating to both "happiness" and "unhappiness" (i.e. dopamine) released during a relationship. Multiply each value by the relative emotional strength of the respective chemical. Compute the sum of the adjusted values for each "positive" chemical, and subtract the sum of the computed values for the "negative" chemicals to get the total happiness value. It is expected that such values would fall into a normal distribution.