The only serious mistake I see in the original post is that it misinterprets Parfit. I agree with Unnamed that it does. But LessWrongers haven’t necessarily read Parfit, and they may have seen his ideas misused to argue in the way the post criticizes, so they can’t really be expected to detect the misinterpretation.
The only serious mistake I see in the original post is that it misinterprets Parfit. I agree with Unnamed that it does. But LessWrongers haven’t necessarily read Parfit, and they may have seen his ideas misused to argue in the way the post criticizes, so they can’t really be expected to detect the misinterpretation.