Think of the potential to save Mother(ship) Earth from mass tourism. Just implant a pleasure trip into someone’s brain, like SF writer Philip K. Dick already envisaged in Total Recall (“I can remember it for you wholesale”). Ironically, the movie Total Recall was about taking to a trip to Mars, the planet Musk has in mind to start space travel to. Experts are convinced that robots will do a better job of exploring Mars. What might come next is to feed what their sensors are experiencing directly into our brain.