The rigor of angels: Borges, Heisenberg, Kant, and the ultimate nature of reality

Part I. Standing on a sliver of time. Unforgettable ; A brief history of this very instant ; Visualize this!

Part II. Not being God. Entanglements ; Sup specie aeternitatis ; In the blink of an eye

Part III. Does the universe have an edge? The universe (which others call the Library) ; Gravitas ; Made to measure

Part IV. The abyss of freedom. Free will ; Forking paths ; Putting the demon to rest

Postscript.