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First, AFAIK - and I don't know much! - all of these trades are handled by computers.  Whether the computers are physically in London or Paris or Nairobi matters not a whit.  

Second, if this system is not backed-up by another system, in another country, running the trades, etc., in parallel and in background with the primary system everyone associated with these exchanges, down to the guy who brings the sandwiches on Thursday afternoon, are cretins.  

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre

by ATinNM on Thu Dec 20th, 2018 at 07:17:34 PM EST

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