When Frank Juszczyk's wife died, he grappled with big questions: How could his reality persist without her being a part of it? And what was it about reality that interrupted their time together?

He told himself that he'd discover the operative dynamic that split them apart and where she'd gone. In this exploration of quantum physics, he seeks to answer questions such as:

Why does there have to be a here and a not-here?

Is reality taught to us or does it simply exist?

If we were to reduce or eliminate the persistence of reality, what would that be like?

Are there possible...