yes, you can eat jellyfish
answering my own question.
forum discussion on eating jellyfish; it is usually chopped up, mixed with something crispy, and dressed with something vinegary or korean mustard. apparently jellyfish itself is crispy. "jellies must undergo a lengthy procedure of first plumping with freshwater, then drying, then re-salinating with brine, before becoming edible."
they are also eaten dried, and are a "good source of Protein and Copper, and a very good source of Iron and Selenium.." Also, an excellent source of sodium.
supposedly Japanese fishing grounds are being invaded by 440 pound poisonous jellyfish, so "people in Japan are learning, slowly, to snack on dried jellyfish." Let Us Eat Jellyfish.
and then I guess at least one kid ate them while lost at sea: Boys survive week at sea on jellyfish and rainwater.
