Adolfo Bioy Casares

Bioy Casares was born into a wealthy Buenos Aires ranching family and met Borges as a young man in the early 1930s, beginning a friendship and near-daily collaboration that lasted over four decades. Together they wrote detective parodies and screenplays under joint pseudonyms, including Honorio Bustos Domecq, and co-edited anthologies of fantastic and detective fiction.

His own novel The Invention of Morel, published in 1940, imagined a machine that could record and endlessly replay a week of a person's life, a premise later acknowledged as an ancestor of holographic and virtual-reality fiction. He married the writer Silvina Ocampo that same year.

He kept detailed diaries of his conversations with Borges across decades, published after both men's deaths and revealing a friendship as important to Argentine letters as either man's individual work. He died in Buenos Aires in 1999.