all probably don't remember catalytic converters, but simply recognizing that the air over los angeles or houston or some of our major cities is a significant cause of asthma, respiratory illness, heart attacks, premature death inspires innovators to realize that's going to make the air cleaner. that's not going away any time soon. so the epa can't protect health without technology. because we cannot adopt rules that put a huge burden on the economy without cost effective solutions to address the problem. so, you know, the history of epa is a history of innovation. even if you aren't a science and technology major, i would strongly advise that you keep that in mind from the standpoint of epa and understand that connection. whatever you are study, we've had lawyers, all kinds of folks who have won the epa. probably more lawyers than anything else. and this is a city -- a town of lawyers. you are all bucking the trend potentially, but i would say it's also important to recognize that increasingly, and i'm sure we're going to talk about sustainability, the private sector is key, too, right? there's