That really surprised me until I looked it up, and read in Wikipedia that "At the center of the Sun, theoretical models estimate it to be approximately 276.5 wa

That really surprised me until I looked it up, and read in Wikipedia that "At the center of the Sun, theoretical models estimate it to be approximately 276.5 watts/m3, a power production density that more nearly approximates reptile metabolism than a thermonuclear bomb" and realized a few seconds later that an object with a thermonuclear bomb's power generation density, the size of the Sun, would not look like a thumb-sized blazing ball of fire from 93 million miles away. It would look like a supernova, and explode around as fast.