I saw a quora answer which says we simply don’t know enough about the science behind food but to me it implies that maybe some day our knowledge will get there?
People laugh but the idea of “bachelor chow” from futurama makes sense to me.
I don’t know enough about the topic of ethical vegetarianism to criticize it. I eat meat. In fact, I had fish for dinner last night. I just don’t think about the ethics of it.
Now I may sound hypocritical when I say this because I’m against policy action through taxation (make taxes as simple as possible by eliminating all income tax credits and deductions). However, I know I’ll continue to eat meat (including milk, eggs, chicken, pork) unless it is either too impractical or too expensive.
I want to believe that if push comes to shove I’ll be able to adjust my eating habits and that my current eating habits are not a part of my identity.
I don’t really have a point to make here except that something like soylent would go a long way toward making me vegetarian at least for the meals I eat alone.
In addition to that, every step up the food chain requires 10x the amount of energy so for every kg of beef produced you need equivalent of 10kg plants just to raise the cows. It's not like the cows feed freely in the grass and carefully avoid stomping on insects all the time, this is often also harvested with machines killing rodents exactly the same way, just multiplied by 10x.
Meat eater myself here, occasionally and in moderation, but at least i'm not making up nonsense about rodents to feel better for myself.
Edit: To add some data into the discussion, see https://www.reddit.com/r/dataisbeautiful/comments/i2vx78/the... for example. It shows more than 10x land usage for cattle and even more for water and energy, sources and their bias discussed in the comments over there. There is also some interesting links stating that purely grass fed beef can only provide half the cattle on same unit of land.