Crazy, mixed-up squid
Yep, you normally cook squid for a short amount of time and when you go over it's like an inner-tube. Squid is like a lot of other ingredients; lots of people don't like it but that's because a lot of people including restaurants don't know how to cook it.
There’s a chemistry...
So this is about using the acid in lemons or limes to cook the fish. It’s not new – soused herrings (vinegar), ceviche, escabeche, actually the whole process is just pickling really. The trick is not to keep it in there too long.