The quantum theory of parallel universes is not the problem, it is the solution. It is not some troublesome, optional interpretation emerging from arcane theoretical considerations. It is the explanation-the only one that is tenable-of a remarkable and counter-intuitive reality. (Ch. 2)

The overwhelming majority of theories are rejected because they contain bad explanations, not because they fail experimental tests.

Reality contains not only evidence, but also the means (such as our minds, and our artefacts) of understanding it. There are mathematical symbols in physical r…

The truly privileged theories are not the ones referring to any particular scale of size or complexity, nor the ones situated at any particular level of the pr…

I just want to explain what I mean when I say that we should try to hold on to physical reality. We are ... all aware of the situation regarding what will turn…

The more precise the measurement of position, the more imprecise the measurement of momentum, and vice versa. In the most extreme case, absolute precision of o…

Theoretical physicists live in a classical world, looking out into a quantum-mechanical world. The latter we describe only subjectively, in terms of procedures…