It's plain simple trading luddism and it's been going on for decades. There was massive resistance to the computerisation and networking of the stock markets, w

It's plain simple trading luddism and it's been going on for decades. There was massive resistance to the computerisation and networking of the stock markets, which only succumbed via foreign competition. Lots of people who lived on being in a racket where passing orders and pushing buttons was extremely valuable saw their livelihoods endangered. Now the same happens to people who make a living on trivial short-term market decisions. Computers do it better and quicker.