CHAPTER 04
What Is Reality?
Follows questions of information, reality, observation, and experience to examine the boundaries of what we call real.
4 explorations- 19→
Does ‘It’ Come from ‘Bit’?
Examines how John Archibald Wheeler’s ‘It from Bit’ reframed the relation among the physical world, observation, and information.
- 20→
Is Information Physical?
Clarifies Landauer’s claim that information processing depends on real devices and thermodynamic constraints.
- 21→
Are We Living in a Simulation?
Examines the three alternatives in Bostrom’s simulation argument and the assumptions on which its conclusions depend.
- 22→
What Does It Mean to Be Real?
Asks what science treats as real among observed phenomena, theoretical entities, relations, and structures.