What is constructor theory and what does it seek to accomplish?

“When you have ruled out the impossible, what remains must be the truth, however improbable it may sound.” Arthur Conan-Doyle had his famous detective Sherlock Holmes say this sentence. However, this sentence could also be used to summarize the basic principle of constructor theory, which the well-known quantum physicist David Deutsch and the Italian physicist Chiara Marletto have been developing for about ten years now. Deutsch first presented her principles in 2012, and since then it has raise...