You're saying, then, that our immediate experience is ultimate enough. And indeed, that's a pragmatic viewpoint.

But I'm interested in how what's taken for granted by mode of experience or cognition becomes preposterous or infantile according to a higher mode. Again, human experience in some sense encompasses the squirrel's because our concepts dwarf the squirrel's, which means the human's might be engulfed and surpassed by a transhuman's. That analogy presents us with a sobering, humiliating concept of ultimate truth that has real-world, ethical and existential consequences.