In regards to eating meat

[BrownEye]

that change happened quite fast. there is nothing barring that from happening again.

Interesting thought there. If we are to look at our current state of awareness, and what we know will come to be, what do we actively choose to be and become?

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Here are a couple exceprts from old posts that I found interesting.

The idea of "Man the Hunter" is the generally accepted paradigm of human evolution, says Sussman, "It developed from a basic Judeo-Christian ideology of man being inherently evil, aggressive and a natural killer. In fact, when you really examine the fossil and living non-human primate evidence, that is just not the case."
Sussman's research is based on studying the fossil evidence dating back nearly seven million years. "Most theories on Man the Hunter fail to incorporate this key fossil evidence," Sussman says. "We wanted evidence, not just theory. We thoroughly examined literature available on the skulls, bones, footprints and on environmental evidence, both of our hominid ancestors and the predators that coexisted with them." ...
But what Sussman and Hart discovered is that Australopithecus afarensis was not dentally pre-adapted to eat meat. "It didn't have the sharp shearing blades necessary to retain and cut such foods," Sussman says. "These early humans simply couldn't eat meat. If they couldn't eat meat, why would they hunt?"

There is no question that humans are capable of digesting meat. But just because we can digest animals does not mean we're supposed to, or that it will be good for us. We can digest cardboard. But that doesn't mean we should.
If the evidence shows that our anatomy favors the digestion of plant foods, and we're healthier when we eat less animal foods, what do we make of the fact that we're capable of eating animals? It's simple: We have the ability to eat a wide variety of foods as a survival mechanism. The fact that we can eat just about anything, including meat, is very handy, from a biological point of view. But the fact that we're able to doesn't mean that we're optimized for it. The evidence for this is that our biology is similar to that of other herbivores, and the more animal foods we incorporate into our diets, the more our health suffers. In fact, it is rather specious to claim that humans are natural meat-eaters considering how poorly we fare when we do so.

Intestinal Toxemia
Intestinal toxemia is poisoning (infection) by decomposition products absorbed from the digestive tract. The toxins are exogenous--of outside origin.
Toxins resulting from protein decomposition (putrefaction) are more virulent than those resulting from carbohydrate decomposition (fermentation). As a rule, decomposition of animal proteins (meat and eggs) produce more virulent toxins than plant proteins.http://chestofbooks.com/health/natural-cure/The-Hygienic-System-Orthopathy/Intestinal-Toxemia.html