Why does humour make us happy?

For example: Why is humour such an effective form of attraction of guys to girls in particular?

My theory is this: Humour is a powerful form of implicit communication. We will explain why so.

Humour production has to always be followed from the mention of something that is out of the ordinary expectations at that moment. Assuming other contextual constraints are not violated such that the mention goes out of context, the more out of expectation that mention is, the more the intensity of the humour produced. For example, you would mention “See what happened if we took a bus when our friend takes a taxi and we end up reaching our destination at the same time!” The most important point about humour we will use here is that it is a mention of an imaginary event that does NOT have to occur (“Imagine if Jack was the CEO of NTU. HA HA HA”). Why humour makes us happy is because, it is a tried and true form of implicitly communicating alternate possibilities to our current reality. Other methods of communicating alternate possibilities would include for example, just straightly mentioning it like how you would do in a job meeting, such a method would be extremely explicit and thus inefficient for communicating large variation of ideas which is what we really want. The implicitness of communicating alternate possibilities ranges from so explicitly like in a job meeting to implicit like showing a condom to your girlfriend for the first time, and with the latter mention, I hope you can now see how effective humour is at mentioning alternate possibilities without miscommunicating how willing you actually mean to commit to it (that is, at baselines of almost zero commitment). It is this that allows it to be such an effective form of implicitly proposing alternate ideas with much less risk of implicitly miscommunicating other information on commitment level.

Because (according to already established by me theory) communication of positive messages (in this case ideas) generates happiness, and implicit communication is efficient communication and hence efficiently generates happiness (consistently everytime in the case of humour!), that is why humour makes us happy.

As to why then girls look for humour in guys. (OR actually generally if you are a humourous person, people wanna hang around you more). This answers the question. Because we know now for a fact that (again this is an observed theory by me) the ultimate thing girls look for in long term relationships is the ability of the guy to carry out implicit communication. And humour is one of the most sufficient-to-pass-the-guy form of implicit communication techniques out there (alongside the more serious ones like ability to listen effectively). If the guy is consistent in his ability to carry out humour, it gives evidence that in times of need for efficient communication (which is actually everyday and probably every hour of a relationship), the guy can be trusted to carry it out accurately and not mess things up with erroneous transmission. With that, production of love and trust is more likely to be sustainable in the long term, and of course that is what people (not only females) ultimately want in a long term relationship.