“Let Φ (a physical possibility structure) be a set of distinct but intersecting paths j_i–j_n, each of which is a set of functions, L’s, on ordered pairs <t, w> (<time, world situation>), such that for any L_n, L_m in some j_i, L_n R L_m, where R is a primitive accessibility relation corresponding to physical possibility understood in terms of diachronic physical compatibility.”

- an excerpt from David Foster Wallace’s unpublished undergraduate honors thesis, “Richard Taylor’s ‘Fatalism’ and the Semantics of Physical Modality”, via the New York Times