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Thanks for all the answers. Personally, I think vittoria is nearest the mark but I'd go even further. I think that it's possible that eventually meat-eating will be abolished. There are plenty alternatives to meat (i.e. various quorn-type things that look like real meat and are supposed to taste like it) and this is bound to become more wide-spread in future. Combined with a greater awareness of the cruelty supposedly suffered by animals in farms and abattoirs, I suspect that meat-eating will become unacceptable. And, in case you think I'm a vegetarian, I'm not. I like eating meat- and I don't feel guilty about it- but I've just got this feeling that it's only a matter of time...