zlacker

This comment is a rare gem. I'm not sure how you're an expert on all this, but even if you made it all up, it's presented very well with strategic sarcasm to boot.

>>jamesl+(OP)
Some general familiarity, a few recent items read and viewed (prior to today), along with general historical context, and harvesting heavily from the linked Wikipedia article as well as the one on pyroclastic flows.

I may or may not have been trying to put a few additional edges on my principle point.

But no: I'm not an expert on the topic.