However imo Kant's model of space-time as in intuition certainly is a metaphysic.
But what he says about space and time is that we can't KNOW them, because our intuitions present everything as being in space or time, and thus we can't separate out space and time from our mode of intuition.
So he is agnostic about whether space and time might exist, and how they might exist, outside of our mode of intuition. Just as he is agnostic about the nature of things in themselves. It's a principle of what we can know, and whether we can know anything independently of the limitations of human perception (answer: no). Transcendental Idealism is also not about subjectivity as such, but rather about refiguring our standard for objectivity as what other humans can also perceive, rather than some all knowing god's eye view.
Hence, not a metaphysics, but more an epistemological methodology.
But I should step away from this topic, as I can go on for hours in this vein.
no subject
But what he says about space and time is that we can't KNOW them, because our intuitions present everything as being in space or time, and thus we can't separate out space and time from our mode of intuition.
So he is agnostic about whether space and time might exist, and how they might exist, outside of our mode of intuition. Just as he is agnostic about the nature of things in themselves. It's a principle of what we can know, and whether we can know anything independently of the limitations of human perception (answer: no). Transcendental Idealism is also not about subjectivity as such, but rather about refiguring our standard for objectivity as what other humans can also perceive, rather than some all knowing god's eye view.
Hence, not a metaphysics, but more an epistemological methodology.
But I should step away from this topic, as I can go on for hours in this vein.