Bioy Casares

Adolfo Bioy Casares (1914-1999) dined with Borges about four or five years before Tlön, Uqbar, Orbis Tertius was written. Given the year of its publishing (1940), and some buffer between that and the date of writing, Casares can scarcely have been in his twenties during the dinner - he may have even been a teenager. Borges was fifteen years older, so perhaps he was doubtful of the other man's youth, and he initially believed Casares to be a fabulist (albeit a "modest" one).

Casares won the Municipal Prize for Literature in 1941.