there was no sound going on. you were in the middle of the stock exchange which i'll believe it has gotten quieter over the years and it was as silent as it gets during opening hour. >> do you expect tomorrow will be unpredictable? >> tomorrow will be more tough for the new york stock and challenge than generally. what it did, this morning there was a lot of concern that there was a targeting of the u.s. financial system or some sort of hacking attack taking down both our air infrastructure and the financial infrastructure. the journal still not explaining what happened. now the attention come on the new york stock exchange which as one trainer put it me, they saw, they have to make sure as the president told us today, it doesn't happen again. >> when you're talking about a literal physical market, confidence in the market, and the structures, it is calibration and all of those