In September 1977 at the 4eme Festival de la Science Fiction in Metz, France, surrealist author Philip K. Dick delivered an astounding address with the title, "If You Find This World Bad, You Should See Some of the Others." He wasn't joking. The speech spanned the themes that define Dick's work and also his life: visionary experiences, d'ej`a vu, the simulation hypothesis, and the nature of reality. Far fucking out. Here are a few choice bits:

The subject of this speech is a topic which has been discovered recently, and which may not exist all. I may be talking about something that does not exist. Therefore I’m free to say everything and nothing. I in my stories and novels sometimes write about counterfeit worlds. Semi-real worlds as well as deranged private worlds, inhabited often by just one person…. At no time did I have a theoretical or conscious explanation for my preoccupation with these pluriform pseudo-worlds, but now I think I understand. What I was sensing was the manifold of partially actualized realities lying tangent to what evidently is the most actualized one—the one that the majority of us, by consensus gentium, agree on.

We are living in a computer-programmed reality, and the only clue we have to it is when some variable is changed, and some alteration in our reality occurs. We would have the overwhelming impression that we were re-living the present - d'ej`a vu - perhaps in precisely the same way: hearing the same words, saying the same words.

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