Predicting the future is a messy game, but “Back to the Future Part II” got a lot of things right (while we don’t have “Jaws 19,” we have plenty of big-screen TVs).

I was 7 years old when Marty McFly and Doc Brown traveled to Oct. 21, 2015 to save McFly’s kids. I dreamed about flying cars and robots and wondered how Nintendo managed to fit so many pictures on a single 8-bit video game cartridge. continue reading →