i will take it that your question is genuine and you are not being sarcastic and uncooperative like you do in most posts or threads i make about socialism or gaddafi... actually you would have found some start information if you had read my long post and followed the articles.
i don't bother to know the current money system in all its technicalities because what is there to understand about the current money system?? why should we need to understand all of economics?? if the global money system can be understood at macro-level it can be affected, like gaddafi was doing, as there are only a few failure points, and once affected that's purpose served... though while gadadfi affected the global money system at political level someone else can do it using technology ( i mean things along the 'open source' and 3d printing computing/manufacture/medicine line as appropriate or someone like elon musk )... better yet i will simply call and work towards abolishing the money system... as simple as that.
nevertheless :
at the top a general understanding that the usa dollar is the official exchange means for most of the world's trade exchanges and aid exchanges... when saddam hussain decided just before 2003 that iraq would no longer deal in dollars with the west but in euros the usa governments and its lap-dog, blair of the british government, decided that saddam must go... there was geo-political advantage as well... gaddafi turned out to be even more bigger danger to not only the usa dollar but to the entire western establishment capitalist system.
main stock markets that use computer network to make super-fast speculative bids about useless/harmful things like cell phone companies and "health and wellness" companies and it/services companies and private/interest-taking banks, or misused things like construction companies and mining companies and pharma companies, or deceitful things like media companies that propagate nato disinfo and propaganda, needless manufacturer things like cell phone factories, microprocessor factories, solar cell factories, plastic casing factories etc, and other categories i don't remember now, and these bids being connected to no real physical value but only to greed, just fractional numbers i never cared to understand because they are useless.
long-established western military industrial complex that manufactures wars and destabilization and prevents solutions so that its hereditary bosses could be kept billionaires despite this industry being a psychopathic one.
useless/harmful consumer items being manufactured in china, japan, south korea ( not the best korea ) and the consumers being blindly pushed with nonsense items like cell phone, vid game machines, 97 inch tv cars etc... life went on before the era of cell phone and no person has actually benefited from having cell phone, plus how is one cell phone brand different from another?? what about violent and political correct vid games legitimizing psychopathy, transgenderism, war-mongering, male homosexuality, androgynous females etc??
useless/harmful it/services industry in india which really exists because some actually needless project in the west has to be done because of some western government rule or corporate greed but no one wants to do in the west so it gets shunted to india where
paise ke liye kuch bhi karega... the neo-rich middle class that is created by the sequence of engineering/mba colleges and the wage-slavery employment ( jobs ) creates a mob-driven compulsive need not for useful infrastructure ( like shopping malls and parks and public transport ) but mostly for harmful infrastructure like flyovers, softdrink plants, offices, gated communities, car showrooms, hotels for dogs, needless roads, technology parks etc... the things that can be individually provided are facilitated by private/"nationalized" banks that provide loans on interest-basis mostly on grounds of someone being in a wage-slavery employment... all this generates need for infrastructural raw material like cement, steel, electrical goods etc that must either be sourced in india or generally from the 'factory of the world' china.
both china and india are going nowhere in actual development of harmonious human experience but they certainly keep circulating the capitalist cycle where ultimately the benefit goes to the usa government and its preferred political system because it is the usa dollar and the usa establishment's cultural, economic and political imposition that is being promoted.
india and china have the largest middle-classes ( and callous middle-classes ) in the world and hence the largest number of consumers of useless/harmful items and all of this goes to benefit the new york stock exchange and the bosses of the american/western companies listed there.
countries apart from india and china mostly don't matter in generation of benefit to those listed above.
just scratches of how the system turns.
okay, exercise for you : why couldn't siddharth mallya, despite his british college degree in business management, save kingfisher airlines??