I'm very sorry to hear that, that's got to be a devastating experience to watch someone you know go through that. Basically impervious was an overstatement for

I'm very sorry to hear that, that's got to be a devastating experience to watch someone you know go through that. Basically impervious was an overstatement for emphasis, you're right. I was trying to draw a stark contrast with the sometimes thoughtless status quo, but I should have been more precise. And to be fair that crown fire study was just looking at thermal ignition, which isn't the whole picture. The strategies to prevent spread through embers are more complex and sometimes not possible in all areas -- vegetation control, standoff zones, irrigation... Still, as I think we both agree, much more can and should be done.