Topic Hub
Arguments
The logical machinery the theory uses to reach its conclusions.
Each argument here is a self-contained reasoning chain. Together they establish that consciousness is substrate-independent and that permanent death is incoherent.
Concepts in this Hub
2=2 argument
Two identical things can be the same as concepts while different as objects. That gap is why consciousness, which is a pattern, can recur even though a particular brain cannot.
ArgumentsAdjective argument
Consciousness behaves like an adjective, not a noun. It is a property of physical structures, not a separate substance. The argument draws out what follows for personal survival.
ArgumentsTest for originalness argument
If two bodies produce identical consciousness, no test could determine which is the "original". The argument uses that fact to show that originalness is not a real property.
Where this Shows Up in the Book
- Chapter 2. The Three Premises — And What Science Says About Them
- Chapter 3. Why Your Intuitions Are Wrong
- Chapter 16. The Test For Originalness
- Chapter 18. Steelmanning The Opposition

Go all the way
The book treats arguments in full, including the moves and counter-moves this site only sketches.