This is VERY significant.
I was in the market on the day it crashed in '87. You couldn't do a trade because you couldn't reach a broker on the phone to enter the order for you. And you couldn't do the trade yourself because that was before the internet.
The whole idea then was to put circuit breakers in place to stop the automated computer trades, and give human beings an equal shot at getting a trade executed. The circuit breakers were/are important because without them, you have the possiblity of a 20%+ plus fall in a single afternoon of trading.
I think this is a HUGE mistake on the part of the NYSE- and benefits only huge holders, not the little guy.
Bad news for Joe Sixpack, once again.