If you need any evidence of how furious the pace of change is in the business world these days, just consider how acronyms have infected our everyday language. We need to communicate so quickly, almost everything is reduced to a bunch of letters.
Consider the YOY performance of the ASX since the GFC. Shocking! Or think how much time it takes to compare the various PE trends of FMG and BHP to the PCP. It can drive you nuts.