Q. About Rationality and Nature

[Mudhammam]

Yes, I suppose that is what I mean, though to clarify, I suppose my question pertains to whether or not it is possible to have an empirical existence, in Time and Space, without a priori pure reason, which seems inextricably interwoven with the most basic categories of existence/non-existence, unity/divisibility, finite/infinite, etc.

It isn't the existence of whatever it is that gives rise to our sense data which depends on pure reason, just us.

Go on... I think I agree but can you spell it out a little more?

Also, as a side, it is kind of remarkable to read what Kant argues as his conception of God on the basis of pure logic and what modern cosmology has dubbed the Singularity.