## Abstract

Just as there is a

difference between knowing how to *

functioning well enough to fix it when it breaks down, so too is there a

difference between knowing how to *

predictions and understanding what it says about the world well enough to see

how it might fail or how it might be usefully generalized. The field of quantum

foundations seeks to achieve such a deeper understanding. In particular, it

seeks to determine the correct interpretation of quantum theory and to find the

principles underlying it, questions for which there is still no consensus among

researchers. In this talk, I’ll discuss some of the interpretational

problems of quantum theory and several of the most prominent proposals for how

to overcome these problems. The list includes introducing hidden

variables that we must necessarily remain uncertain of, changing the rules of

logic, and positing the existence of an infinite number of parallel worlds.

difference between knowing how to *

**drive*** a car and understanding itsfunctioning well enough to fix it when it breaks down, so too is there a

difference between knowing how to *

**use*** quantum theory to makepredictions and understanding what it says about the world well enough to see

how it might fail or how it might be usefully generalized. The field of quantum

foundations seeks to achieve such a deeper understanding. In particular, it

seeks to determine the correct interpretation of quantum theory and to find the

principles underlying it, questions for which there is still no consensus among

researchers. In this talk, I’ll discuss some of the interpretational

problems of quantum theory and several of the most prominent proposals for how

to overcome these problems. The list includes introducing hidden

variables that we must necessarily remain uncertain of, changing the rules of

logic, and positing the existence of an infinite number of parallel worlds.