re: Super Volcano Going To Erupt At Yellowstone?

We went to Yellowstone a couple of summers ago. I will tell you that it is surreal to see signs that say, "stay on the boardwalk" in the Midway geyser field because they don't know how thick the crust is there and when it will break through. I guess it just never comes to mind that the middle of the Earth is actually so hot until you see that or a lava flow.