The internet didn't shrink 6% real estate commissions. But this lawsuit might
cnn.com
cnn.com
It's a huge challenge, but maybe one of the companies that is already working on this (for example, Door, mentioned in TFA) will be able to make some headway in this area that has lacked it for so long.
People can't afford to move closer to work if they take a 10% hit each time. (it is well above 6% due to numerous random other things like title insurance)