great analogy. also does a good job pointing out the type of vagueness and subjectivity in meaning that makes it hard to pin down consciousness.

the vagueness- which parts can you remove from a car before you wouldn't call it a car anymore?

the subjectivity- which parts can you remove from a car before I wouldn't call it a car anymore?

bald is another funny example of emergence (though not my own). how many hairs must one grow before they are no longer bald?