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

Introduction: Where did it go?

Part I. Standing on a sliver of time. Unforgettable

A brief history of this very instant

Visualize this!

Part II. Not being God. Entanglements

Sub specie aeternitais

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.