How to Build a Universe That Doesn't Fall Apart Two Days Later is a celebrated 1978 essay by Philip K. Dick, originally delivered as a speech, in which he addresses his two central preoccupations as a writer: the question of what is real and the question of what constitutes an authentic human being. The essay opens with a characteristically self-deprecating anecdote about being interviewed by Paris TV at Disneyland alongside Norman Spinrad, where they discussed the rise of fascism while riding in giant teacups.
Dick uses this absurdist scene as a launching point for a wide-ranging philosophical meditation. He describes how his entire body of writing has been driven by the suspicion that the universe we inhabit may not be real, and that the people around us may not be genuinely human in any meaningful sense. He draws on examples from consumer culture, political manipulation, and his own fiction to explore how fake realities are manufactured.
The essay is significant as one of Dick's most articulate and accessible statements of his philosophical worldview. Unlike the dense, circuitous explorations of the Exegesis, this piece presents his core ideas in a polished, public-facing format. It has become one of the most frequently cited and anthologized of Dick's non-fiction works, serving as an essential introduction to his thinking about simulation, authenticity, and the constructed nature of consensus reality.