At this point Jake is accompanied only by his father, Sam, who is actually dead but has been "converted" into an artificial intelligence unit that is built into the truck.
Within the story, "Copies", digital renderings of human brains with complete subjective consciousness, the technical descendants of ever more comprehensive medical simulations, live within VR environments after a process of "scanning".
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Most importantly, this great computing capacity is used to construct physiological models of patients for medical purposes, enabling the creation of Copies, whole brain emulations of "scanned" humans which are detailed enough to allow for subjective conscious experience on the part of the emulation.
Eternal Sunshine of the Spotless Mind | Never Mind the Buzzcocks | Never Mind the Bollocks, Here's the Sex Pistols | Jedi Mind Tricks | Mind | Lone Star State of Mind | Evil on Your Mind | Unconscious mind | The Mind Robber | The Mind of Evil | The Captive Mind | Odyssey of the Mind | Empire State of Mind | World Mind Sports Games | Philosophy of mind | Out of Your Mind | Mind uploading | mind reading | Mind Garage | mind control | Mind (charity) | If You Could Read My Mind | Dirty Mind | Dagger of the Mind | A State of Mind | With You in Mind (Allen Toussaint song) | ''With You in Mind'' (Allen Toussaint song) | The Mind of the Married Man | Pagan's Mind | Never Mind The Buzzcocks |