These factory farmers calculate how close to death they can keep the animals without killing them. That's the business model. How quickly can they be made to grow, how tightly can they be packed, how much or how little can they eat, how sick can they get without dying.

A simple trick from the backyard astronomer: if you are having trouble seeing something, look slightly away from it. The most light-sensitive parts of our eyes (those we need to see dim objects) are on the edges of the region we normally use for focusing. Eating animals has an invisible quality. Thinking about dogs, and their relationship to the animals we eat, is one way of looking askance and making something invisible visible.

Before child labor laws, there were businesses that treated their ten-year-old employees well. society didn’t ban child labor because it’s impossible to imagine children working in a good environment, but because when you give that much power to businesses over powerless individuals, it’s corrupting. When we walk around thinking we have a greater right to eat an animal than the animal has a right to live without suffering, it’s corrupting.

The choice-obsessed modern West is probably more accommodating to individuals who choose to eat differently than any other culture has ever been, but ironically, the utterly unselective omnivore - “I’m easy; I’ll eat anything” - can appear more socially sensitive than the individual who tries to eat in a way that is good for society. Food choices are determined by many factors, but reason (even consciousness) is not generally high on the list.

The persistence of the story of animal consent into the contemporary era tells of a human appreciation of the stakes, and a desire to do the right thing.

We perhaps know more than we care to admit, keeping it down in the dark places of our memory-disavowed. When we eat factory-farmed meat we live, literally, on tortured flesh. Increasingly, that tortured flesh is becoming our own.

When we lift our forks, we hang our hats somewhere. We set ourselves in one relationship or another to farmed animals, farm-workers, national economies, and global markets. Not making a decision--eating 'like everyone else'--is to make the easiest decision, a decision that is increasingly problematic.

Do you eat chicken because you are familiar with the scientific literature on them and have decided that their suffering doesn't matter, or do you do it because it tastes good?

Needless to say, jamming deformed, drugged, overstressed birds together in a filthy, waste-coated room is not very healthy. Beyond deformities, eye damage, blindness, bacterial infections of bones, slipped vertebrae, paralysis, internal bleeding, anemia, slipped tendons, twisted lower legs and necks, respiratory diseases, and weakened immune systems are frequent and long-standing problems on factory farms.