I was amazed. I'd had this vague notion that babies were sort of uninteresting blobs and didn't manifest a personality until maybe a year old. I have no idea why I thought that, but I was utterly wrong. [...] But from birth on, she was manifesting sufficient personality for us to regard her as an individual human with her own preferences.
"Responds to musical stimuli", assuming it's true, is hardly an argument about being a person. A parrot could have similar ability to discriminate between types of music, for all I know.
Edit in response to downvoting: Seriously. There could be correct arguments for your statement, but this is clearly not one of them. This is a point of simple fact: ability to discriminate types of music is not strong (let alone decisive) evidence for the property of being a person. Non-person things can easily have that ability. That this fact argues for a conclusion that offends someone's sensibilities (or even a conclusion that is clearly wrong, for other reasons!) is not a point against the fact.
It was in response to the assertion that babies could reasonably not be regarded as individual humans until age two. That assertion is ridiculous for all sorts of reasons. It was also noting that until I had actual experience of a baby, my assumptions had also been ridiculous, and that really doesn't need me putting "and by the way, it's possible that you're just saying something simply incorrect due to lack of experience" on the front. I am finding your response difficult to distinguish from choosing to miss the point.
What do you believe that most people on this site don't?
I'm especially looking for things that you wouldn't even mention if someone wasn't explicitly asking for them. Stuff you're not even comfortable writing under your own name. Making a one-shot account here is very easy, go ahead and do that if you don't want to tarnish your image.
I think a big problem with a "community" dedicated to being less wrong is that it will make people more concerned about APPEARING less wrong. The biggest part of my intellectual journey so far has been the acquisition of new and startling knowledge, and that knowledge doesn't seem likely to turn up here in the conditions that currently exist.
So please, tell me the crazy things you're otherwise afraid to say. I want to know them, because they might be true.