The programmers who created the original AutExsystem, which ran on two huge Xerox Sigma 9 mainframes in lockstep mode (either one could take over if the other went down), have long since retired.
Of course, Bloomberg corporate went into overdrive on damage control and said the practice had ceased, but the whole story brought me back 40 years to an earlier version, which took place when I worked at AutEx, the first-ever electronic trading system.