Because if you miss something - and traders are not known as being awesome coders - you end up with something like the London Whale. $2B of loss because a guy o

Because if you miss something - and traders are not known as being awesome coders - you end up with something like the London Whale. $2B of loss because a guy on his little spreadsheet missed something after thousands of copypasta... And it's not the only one. On an engineer pov with everything we invented (such as CI, or no single point of failure in databases) it is just purely unbelievable.