Question

for nagel, the reason why there are facts that cannot be expressed as true propositions within human language is because
some facts are immaterial, and these escape our scientific thinking
there are facts that cannot be understood from within our own unique point of view as human beings
some facts are just entirely too complex for our limited minds
we have not sufficiently evolved to grasp such facts

Explanation:

Thomas Nagel, in his philosophical works (such as What Is It Like to Be a Bat?), emphasizes the subjective nature of experience. He argues that there are facts (like the subjective experience of being a bat) that cannot be captured from a human - centered, objective (or human - unique point of view) perspective. The first option about immaterial facts escaping scientific thinking is too vague in the context of Nagel's specific argument. The third option about complexity and the fourth about evolution are not the core of Nagel's reasoning. His key point is about the limits of the human point of view in understanding certain facts.

Answer:

there are facts that cannot be understood from within our own unique point of view as human beings