As you say, the way string theory requires all these extra dimensions and this comes from certain consistency requirements about how string should behave and so on.

Consciousness ... is the phenomenon whereby the universe's very existence is made known.

My own way of thinking is to ponder long and I hope deeply on problems and for a long time which I keep away for years and years and I never really let them go.

It is hard to see how one could begin to develop a quantum-theoretical description of brain action when one might well have to regard the brain as "observing itself" all the time!

This book is about physics and its about physics and its relationship with mathematics and how they seem to be intimately related and to what extent can you explore this relationship and trust it.

Quantum mechanics makes absolutely no sense.

As you say, the way string theory requires all these extra dimensions and this comes from certain consistency requirements about how string should behave and so on.