The markets came through the tech Bubble. They came through the Enron/World.com/ et al scams. Hell, they came through 9/11! THERE WAS NO CRASH AND THERE WAS NO DEPRESSION!
Let me ask you a question. Let's suppose those 'full stops' you mentioned kick in. That means noone can buy or sell stocks, right?
Well, if noone can buy or sell them aren't they functionally worthless? I mean what good is a 'equity device' if you can neither buy nor sell it?
L