It's not science fiction: using AI (artificial intelligence) Paul McCartney was able to separate out John Lennon's voice on an old cassette tape and sing with him on this, the last Beatles song.
At a time when many industries are complaining about a lack of workers, technology companies are creating human-like robots that may be able to automate many of the things human workers can do today, for a tiny fraction of the cost. The revolution is now well underway