What? The fact that plants physically react to being cut has absolutely no bearing on whether they have conscious experience.

How about I just get to eat meat because I consider it far more humane to be more efficient about proteins?

What does this have to do with anything? This is bringing efficiency to an ethics fight.

I have a feeling that that might change after this election. There’s a real sense among liberal media (that I engage with) that a loss of this magnitude needs to be answered by a pretty substantial break with the status quo.

Believing a candidate when they tell you who they are is the opposite of delusion.

First: your tone is highly combative. I wouldn’t be shocked if this is part of why you don’t have productive conversations most of the time. I’m a pretty coolheaded person, but being Internet-shouted at does not tend to bring out the best in people.

Ironically, given the vegan stereotype, you are the one who has levied personal accusations, not me.

Your utilitarianism equates mass slaughter with ‘the least suffering’. That is monstrous.

What?

Does “mass slaughter” not describe the current state of affairs, except on a daily basis? Something like a billion animals per day (including fish)? 1 billion pigs, each of which us as smart as a toddler, per year?

I’m proposing slaughtering animals that were already going to be slaughtered. The only difference is timing, right? Seriously, am I missing something?

Surely the anti-vegan position must also consider mass slaughter, in the most dispassionate and literal sense of the word slaughter, to be acceptable.

It’s clear that you value your ideals over practical considerations.

What you call “practical considerations” are ultimately grounded in an ideology.

The difference between us is some combination of ideological and factual. It is not that I am ideological and you are not.

Species extinction is a great tragedy, and it is happening at a frightening pace.

If you care about biodiversity, you really don’t want to be arguing the anti-vegan position. A huge portion of species extinction is a result of habitat loss, a huge portion of which is caused by clearing land for cattle ranching. If you want to reduce your personal impact on biodiversity, don’t consume cow products.

Domestication is mutualism, animals receive great benefit from it in the form of better nutrition and medical care. You treat it as some form of inhumane torture and deny its greatest benefit. I cannot accept your arguments here.

I can’t see how you can possibly argue that animals in the meat industry have a good quality of life (on average; I’m sure there are exceptions). Jesus, have you seen the conditions they’re kept in? Have you seen the chickens so large they can barely move? Have you seen what they do to male chicks? This is, like, the core emotional reason why people go vegan to begin with.

And here the bullshit begins. I never ONCE fucking invoked a supernatural deity here and was SPECIFICALLY referring to how our diets have shaped our physiology over the last several hundred thousand years. Honestly I wanted to just stop this discussion here and block you, but I am trying to be a better person no matter how hard you make it.

Please, please. Please assume good faith on my part. (Don’t be so unreasonable.)

Of course you never invoked a deity. That was a rhetorical gesture on my part. The point is that there is no telos in nature. You cannot get directly from a state of affairs to a conclusion about how things ought to be.

I have particular qualm with arguments of the form “We evolved doing X, therefore we’re meant to do X, therefore we should continue doing X”, because they typically imply that evolution has some kind of normative quality to it, which it simply doesn’t.

No I wouldn’t, not at all, in fact I abhor the fact that agriculture ever became a thing.

You know what? I respect that stance. I used to believe it wholeheartedly, but I have a lot of reservations about it these days. I don’t think you should judge me too harshly for assuming the opposite, though—you’re part of an extreme minority.

But my original point stands—unless your argument is that we should live as much like hunter-gatherers as possible, in which case, well, I suppose that’s a consistent position—but in that case, I think you ought to be focusing your energies arguing against cheeseburgers, because “plant-based”-type vegans have a diet much closer to prehistoric humans than the average Westerner.

We are the products of a ridiculous amount of specialization that even cutting edge medicine is only now beginning to understand, your embrace of ‘unnatural’ solutions (which is a stupid phrase all things considered we are a part of nature) is ill-planned as far as outcomes. You make ASSUMPTIONS that certain outcomes are the only result with no evidence, when the real world is rarely ever amenable to such clear cut cause and effect relationships.

The original question was: “Do you not think the critical need for specific supplements to maintain good health is a sign that the diet was never intended for our normal operation?” But it seems that what you really mean is: since vegans need to take supplements, maybe it’s impossible for the vegan diet to ever be truly healthy. Maybe that should have been obvious, but I’m autistic, so I tend to assume that people mean exactly what they say.

My answer to the latter question is: maybe! But I’m doubtful. I see vegans who are doing just fine, so I really do think there’s no fundamental reason why a vegan diet can’t be healthy. And, really, I don’t even see how it could be true. In the worst case, anything that we normally get from animals can be synthesized, or even grown in a lab.

In any case, I see suffering and I think we should be willing to take personal risks to reduce it. I don’t think that idea, on its own, is so crazy. Remember, I am not arguing in favor of, like, legislation; I’m arguing that people should make these choices voluntarily.

It is an established fact that pets are healthier and longer lived than their wild cousins, this is one case where you choose to ignore your utilitarianism because it conflicts with your groupthink.

I did say I was undecided. I’m not interested in arguing over points that I haven’t even endorsed.

There is clear evidence that even non-vegan infant formula causes long term health issues and that the only complete nutrition we have now for infants is human breast milk. I do not see how a vegan solution could even come close.

Why on Earth would I have an ethical objection to voluntarily-given human breast milk? That is vegan, by any reasonable definition. I thought you were talking about raising an infant with, like, vegan baby food.

I have no objection to the substance of animal products itself, or else I wouldn’t be suggesting lab-grown meat as a future possibility.

What are your plans for all the currently living domesticated animals if, hypothetically, meat eating is made illegal?

I haven’t here advocated for making meat-eating illegal. If nothing else, at the current moment, that’s infeasible for a number of reasons, and even if it became mostly feasible, there would probably always have to be some exceptions (e.g., people who have very specific dietary requirements, although maybe lab-grown meat could plug that hole?).

That said, thinking purely hypothetically, I recognize two likely endgame scenarios.

1. A gradual phasing out of animal agriculture. Suppose legislation is passed that increasingly limits animal agriculture over the course of, say, twenty years. Animal stocks dwindle over time, eventually being reduced to nothing.
2. A mass holocaust, akin to what Denmark did to their mink stocks in 2020. This sounds horrible, but it is, ethically speaking, actually the better option, because it results in the smallest amount of total suffering (i.e., the area under the daily suffering curve is greater in Option 1 then in Option 2).

Have you ever considered that being raised by humans for consumption is literally the most wildly successful species survival strategy that natural selection has ever thrown up?

This is completely irrelevant. For me, veganism is basically just what happens when you take utilitarianism and extend it to include the experiences of non-human animals. I care about individuals. I don’t care one whit about species per se.

Meat is one of the most nutrient dense foods out there and is likely the entire reason we were able to develop these incredibly energy and nutrient expensive brains, have you considered what the long term species ramifications are for us if we choose to stop a standard practice that has been with us since before our species was even human yet?

Do you not think the critical need for specific supplements to maintain good health is a sign that the diet was never intended for our normal operation?

I’ll take both of these at the same time, because my thoughts on them are basically the same.

We were not designed by a god. We were not “intended” for anything. Evolution has no normative value. To believe that it does is pseudoscience (or, perhaps, pseudo-philosophy).

People who argue that veganism is “unnatural” are arbitrarily picking out one out of the innumerable ways that the lives of humans today differ from those of the past. If I suggested that we ought to revert to being subsistence hunter-gatherers in Africa living in groups of ~100 people, you would call me insane. So the mere fact that something is different from the conditions in which we evolved means absolutely nothing.

The question is simply this: can we reduce suffering? If we can, we should, regardless of how “unnatural” the solution is.

If you can provide me a scientific argument against veganism in principle, that would be worth considering. Merely gesturing at the need for supplementation says nothing to me. If it works, it works.

What is your stance on pets?

I haven’t figured this one out for myself yet. I think the anti-pet people have compelling arguments, and I have a lot of cognitive dissonance over that fact.

I would like to hear your opinion on parents raising their infants to be vegan from birth.

This one I’m not sure about, at least right now, simply due our lack of knowledge. My guess is that it’s theoretically possible to raise an infant as a vegan without any problems, but that it’s more difficult to do it right. I don’t know if I’d trust myself to do it. I think this is a problem that will require a lot of studies to figure out, but I also think it’s worth figuring out.

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I am a vegan. Is this conversation unreasonable?

Are you talking to the same person, or the same few people, repeatedly? There certainly are people out there who just are unreasonable. You can’t expect individuals to change.

Otherwise, I guess (and I admit that this is biased in my favor) that you simply disagree with each other at a foundational level, and that’s causing you to talk past each other.

I think that most people don’t really know how to discourse with people who have differing ethical foundations, because it can lead to situations where a person who meets all the societal criteria of a “good person” is nonetheless committing (according to whatever ethical precepts) a horrible crime. But, in this context, accusing someone of committing a horrible crime is not unreasonable; in fact, it’s too reasonable; it involves prioritizing reason over tact and politeness.

I’d be interested in seeing a trace of one of those conversations.

For the most part, the “unreasonable vegan” stereotype comes from two places.

1. Confirmation bias. Veganism makes people uncomfortable with their own decisions, so people spread around the most outrageous stories about vegans as a defense mechanism. This is the same thing that happens in various circles with anyone whose mere existence makes other people insecure; e.g., teetotalers, or polyamorous people.
2. Just plain disagreeing with them. There are lots of vegan arguments that are logically valid, but they sound outrageous if you don’t already agree with them. People have trouble looking past their initial emotional reactions, so they respond to logically valid arguments with mere incredulity.