I am not interested in a serious debate about the most suitable theory there is on the market nor am I willing to discuss it in a romantic way. But I am somehow interested how different perspectives and researchers from different areas would describe a phenomena like Christmas with their own 'scientific' words.
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From a neo-institutional perspective one might argue that Christmas is an institutional establishment of the society, a social practice which was originally ment to come together with your family and friends, to have a time of reflection, to calm or slow down a bit, to think about the ones which are not as lucky as you and in any way donating to the poor in whatever kind of way. (There might be so many other things, what christmas should be like....).
But, what actually happen is that presents/gifts are getting bigger and bigger, more and more, while the original spirit is left behind. Parents are competing about the best (most expensive !sic) present or the most delightful christmas decoration. Christmas is seen as a kind of competition, which perverts the actual sense of it. (it could go longer and deeper into the subject, I am sorry to leave this out at this point....)
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Please, don't take this to discuss about the sense of christmas in this specific way. I am interested in how a theoretical physicist sees christmas (or at least some particles of it...), or what about the anthropologists, the economists, how would you deal with christmas in medicine or mechanical engineering, what about hydrologists or whatever kind of research area there is.....