You could find the time to figure out what to eat on a plant-based diet in the space of a single Youtube video. The science that eating plant-based isn't just fine for you but also better for you is extremely solid. Just because we evolved to do something doesn't make it moral, and needlessly killing animals is clearly not moral. Humans did not evolve with the terrifyingly industrial scale farming we do now providing the unprecedented amount of meat global humans now consume.

I don't needlessly kill animals. I kill animals (well, they are killed on my behalf) to eat.

and there are mountains of evidence that prove you don't need to consume dead animals to have complete nutrition.

which makes the killing of animals to eat a needless act. because it's not needed.

Yes, if I want to read mountains of papers and meticulously watch and count what I eat and stay current on research and accept difficulty in deciding what and where to eat and treat the joyful act of eating as if it were a shameful act of desperation, then I could. But like I said, I have enough hobbies and I find no shame in recognising that my lineage evolved from a single cell organism to an apex predator.

And yet despite this self-assessed evolution to apex predator status, you probably accept the difficulty and self-restrain from killing other humans during a fit of road rage if you're cut off while driving.

However, some people have cultivated empathy for non-human beings to the point that killing an animal for an easier meal is morally equivalent to killing a human for an easier time on the road.

Some people have also recognized that a bit more difficulty in finding a place to eat is worth it to decrease the ecological impact of eating beef and cheese.

And some others still have realized that not everything should be hedonistic, and enjoy a plant-based diet that contributes to overall greater health even if it means a bit less (or rather, different - vegan food is delicious) sensory pleasure.

Shame can be a powerful motivator to be sure, but altruism and compassion are preferred, here.

> I just eat what I evolved to eat

So do I: plants!

I'm an omnivore. all meat or no meat is not what i'm evolved to eat. Perhaps I eat too much meat, but zero meat isn't the right answer.

Just because you evolved to do something doesn't provide a moral justification to do that thing. Whether you evolved to or not, animals suffer extraordinarily in the farms of torture we've made for them. It is well accepted that you can eat healthily on a vegan diet, and it would only really take a couple articles to figure out how to have a healthy plant-based diet. You could do it at Walmart.

Who's moral justification? Yours?, My families?, my community?, my government? my god?

I maybe too much of a individualist, so I get a little triggered when I see claims from others about the moral justification of what I should eat, what job I should have, who I should vote for... When these things that I do are not hurting myself or other humans.

Now I'm sure you could take an example of each one of these and "butterfly affect" to some example of hurting another human, but I could do the exact same thing to any one of [your] lifestyle choices.

The moral justification comes from the understanding that the brain is an organ which integrates information to form this profound feeling of presence that you and I share. There is zero evidence to suggest that we don't share this feeling with animals. This is a scientific argument. I'm a professional neuroscientist working in brain simulation, and even the complexity of a ringworm is out of the grasp of the field. The complexity of the brain is unrivaled anywhere else in nature, and it has this wonderful emergent property that I feel like something. Animals feel like something. It feels like something to be a cow, a chicken, and a pig. They understand and relate to the world. That is why it is wrong to kill them unless you have to.

> no meat is not what i'm evolved to eat

why do you think this? I've lived seven healthy years with zero meat and am in superb physical shape. how many 30+ year olds do you know that can run a five minute mile? can you?

Yeah, I eat plenty of those too!