Even that Wikipedia article refers to several definitions for sentience, ranging from experiences sensation through ability to make choices all the way up to human-level consciousness. Sci-fi stories have used it to mean “human-like” when the word “human-like” was inappropriate for the story, but vegan literature uses it in what might be its original definition, which could be broadly termed as “able to sense.”
Speaking of literature, the Stanford Encyclopedia of Philosophy article is a literature study, not an attempt at objective definition. I think any honest assessment agrees that there isn’t an objective definition here, partially because we don’t understand most of the questions we’re asking, let alone the answers.
I said more about it here, but in short, I think it’s perfectly reasonable to select a definition of sentience that includes chickens. I just also think it’s perfectly reasonable to select a definition that doesn’t.
Seconding this explanation. It’s exactly right.
That’s not to say there aren’t private schools for rich kids. There definitely are. But that’s not magnet schools, and it’s not where Spider-Man goes.
There was a whole scandal a few years ago where a bunch of people, including Aunt Becky from Full House, was caught paying to get her kid into Stanford. That’s university, not secondary; and maybe someone who wasn’t so splashy about everything might’ve done better. But it illustrates the point: we at least try to maintain the illusion of being meritocratic.