Yes, the experts are beginning to come out with the idea that a "zipper effect" took place, and that with one or two tiles gone, the heat got in behind the rest and they just fell off, a bit like a chain reaction. It would only take one. And if the tiles had come off a wing, it explains how one contrail became two and then multiples as that wing would have been torn off first.

Damn!

- Pfranz