I was reading a book and it kept referring to ceviche. What I gleaned from the book is that it is raw fish, chopped up and mixed with cilantro and lime juice. Is that correct? The book didn't specify a particular fish, in fact it mentioned that just abuot anything would work with this. It also said the lime juice "cooks" the fish. I'm a wee bit skeptical of THAT claim. Anyone know much about this? I'd appreciate a more knowledgeable answer.