 Yeah, so Jack's discovery has to do with how and why homes burn and where the real source of the problem is. And, you know, think about a campfire or even a fire in your fireplace. Like you see that fire burning on a log, you throw another log on and that log burns. And when we think about homes burning, it's intuitive to think that, you know, this big wall of flame, like the wall coming off of this log, say, would burn up against a home and engulf things. And that's how fire spreads. But back when Jack was studying this, you know,