It is possible to build a virtual-reality generator whose repertoire includes every possible environment.

It is possible to build a virtual-reality generator whose repertoire includes every possible environment.

No precautions, and no precautionary principle, can avoid problems that we do not yet foresee. We need a stance of problem-fixing, not just problem-avoidance.

Our best theories are not only truer than common sense, they make more sense than common sense...

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 predictive hierarchy - but the ones that contain the deepest explanations.

Time travel may be achieved one day, or it may not. But if it is, it should not require any fundamental change in world-view, at least for those who broadly share the world view I am presenting in this book.

Where we have good, testable explanations, they then have to be tested, and we drop the ones that fail the tests.