text:  Absolutely. Like black carbon, which is a very important component of how the world is going to be shaped in the futures of the generations that come. It's really great to have you. And I was just thinking the last time we spoke to you, it was about how we keep our homes cool in a warming world. And now black carbon, I just think is there no end to your knowledge, Zarin? Like, where are the limits with you? Absolutely.