I’m not familiar with Nagel, but assume his writings a very similar to those of Fred Alan Wolf.
I find their concepts to be truly extraordinary because they are actually possible.
Providing that what we know of “uncertainty” is certainly true.
It still leaves Man alone.
Interestingly Nagel still professes to be an atheist. I suspect he has a crabbed conception of God as the logic puzzle philosophers and a lot of Western theologians turn Him into, rather than the transcendent ground-of-being, who is nonetheless by some improper analogy best thought of as personal. (I’m what in these latter days passes for a devout Orthodox Christian, and I most assuredly do not believe in the logic-puzzle-God of Western thought.)
I don’t know Wolf.