[Altair]

Something to consider.. vegetarianism has been around for thousands of years. In some places (Asian countries) it's been the norm for a long time, probably thanks in large part to a handful of people that attained something spiritually profound, and people saw that and with it a change of diet occurred on a larger scale. One can only hope a few people here and there in Europe and the US could reach that level and it would transform society and have lasting impact for centuries/millennia to come.

Also in other places such as the Middle East and Northern Africa vegetarian food was/is the norm because meat was/is expensive for a lot of people. Now of course most people here are not ethical vegetarians, they eat fish or meat if given the opportunity but many were/are practically vegetarians. I have been to such countries and it's very easy to get all your needs there on a veg diet. Europe has a history of vegetarian groups as well. A few people here and there might not do well on a vegetarian diet, but to say only a limited number do well is a huge stretch. Many people throughout history have lived healthy and reached old age with this diet. It's much more parsimonious to assume that it is a limited number that don't do well..

As some of you may know.. species, humans included, change much faster than most of us assume. In a XX thousands of years many of us have become lactose tolerant. In a matter of centuries we've gotten much taller on average and our teeth have changed, many people now have overbite. We change... as is our 'need' for meat and our capacity to live without it. Nature isn't fixed.. it's a work in progress..