more concerns about this, gary gentzler -- he does have a point about this.so i understand why it's growing, it's been a huge hit in the last year for sebo. but let's be a little cautious about encouraging people to jump in today bets on the stock market. >> well, gary gentzler can speak about gamefication, but the s.e.c. approved this product. >> they did. it's one thing to stand up and say this is illegal and somehow it's not illegal. the derivatives market is, we don't even know how big the derivatives market is, it dwarves the underlying market. there's nothing illegal about it. the question is whether we want to keep endlessly encouraging it. there's not a legal basis to deny the application for this. i think it's fine. i'm not opposed to it continuing to trade. i'm simply trying to raise a flag here and say, look, there are aspects of this that make it very, very easy for market behavioral economics, if you study that, to get people involved, that dope mine high, the cash settlement, one-day bet. i think the s&p is up today, the nasdaq is up today, i've