Long a matter of philosophical speculation, the idea of multiple realities has been given new artistic licence by physics (Timothy Andersen)
When I was in my mid-30s, I was faced with a difficult decision. It had repercussions for years, and at times the choice I made filled me with regret. I had two job offers. One was to work at a very large physics experiment on the West Coast of the United States called the National Ignition Facility (NIF). Last year, they achieved a nuclear fusion breakthrough. The other offer was to take a job at a university research institute. I agonised over the choice for weeks. There were pros and cons in both directions. I reached out to a mentor from graduate school, a physicist I respected, and asked him to help me choose. He told me to take the university job, and so I did.