Back to the Future him to 2015 to resolve a problem with their future children. The trio board the DeLorean, which has been upgraded with hover technology, and warp to the future. Writer and producer Bob Gale conceived "Back to the Future" after he visited his parents in St. Louis, Missouri after the release of "Used Cars". Searching their basement, Gale found his father's high school yearbook and discovered he was president of his graduating class. Gale had not known the president of his own graduating class, and wondered whether he would have been friends with his father if they went to high school
Back to the Future (franchise) not doing so will unravel everything they've accomplished. In a female voice, the artificial intelligence of the Quantum Mind Jar tells Doc that they need to go back to the future, which he dismisses as he doesn't want to risk making any more time travel. At that moment, another Emmett Brown, from an unknown time period, arrives, also declaring his experiment a success. Both versions of Emmett, along with the artificial intelligence of the Quantum Mind Jar, are shocked at discovering that there are two Emmett Browns present. "Back to the Future: The Ride" is a simulator ride based on