When I was a kid, I loved Walt Disney. I loved his television shows like "Disneyland," "Walt Disney Presents" and "Walt Disney's Wonderful World of Color."

I was a huge fan of all his cartoons and characters.When I learned about Disneyland in California, it was a dream of mine to someday go there. I especially wanted to visit Tomorrowland … a vision of the future as far into 1986. I could see his vision of a world with buildings that looked like spaceships and futuristic trains that ran in the sky. Oh, what a world it would be!At the opening of Tomorrowland, July 17, 1955, Disney said at its dedication, that it was "A vista into a world of wondrous ideas, signifying Man's achievements. ... A step into the future, with predictions of constructed things to come. Tomorrow offers new frontiers in science, adventure and ideals. The Atomic Age, the challenge of outer space and the hope for a peaceful, unified world."Well, here it is, 2015, 60 years later.Since then we have put a man on the moon and have explored some of our nearby space.We have almost eradicated polio from the earth, cured some cancers and can even remove those tattoos we now regret.Popular Mechanics convened a panel of 25 experts to identify innovations that have made the biggest impact, from the hospital to outer space to the kitchen of the past 50 years.Here are a few: Pacemakers, coronary bypass surgery, the remote control, microwave oven, birth control pill, jet airliners, cordless tools, communications satellites, LED, video games, three-point seatbelt, high-yield rice, smoke detectors, digital music, waffle sole running shoes, computer mouse, cellphones, in-vitro fertilization, Velcro, MRIs, GPS, scanning tunneling microscopes, DNA fingerprinting, laser beam, genetic engineering, super glue, MP3 player, wireless metropolitan area network standard that functions like Wi-Fi on steroids, and the electric car.We do indeed have so many intelligent people in our world who have brought so many "futuristic" ideas to fruition over the years.But, Disney's hope for a peaceful, unified world has still eluded us.Harry and I went to see the new Disney movie, "Tomorrowland." I won't spoil it for you in case you want to go see it. I'll just tell you that it is a sci-fi/fantasy film that leaves you asking, "As smart as our men and women are today, why can't we stop the destruction of our earth, why do we still have starving people and why can't we have peace?"The movie suggests that maybe we just don't encourage our children to dream; to dream of all the wonders of a Tomorrowland.I guess we're so focused on just trying to live in Todayland. We encourage our children to go to school to find good jobs that provide a good income. Some of their dreams can only be focused on earning enough money to be able to afford a car, house, family and pay their bills.I think the message of "Tomorrowland" is that we need to also encourage our children to be dreamers; dreamers about what the future can be and then work toward making it come true.Robert K. Greenleaf, founder of the Center for Applied Ethics said, "Not much happens without a dream. And for something great to happen, there must be a great dream. Behind every great achievement is a dreamer of great dreams. Much more than a dreamer is required to bring it to reality; but the dream must be there first."John Lennon sang, "You may say I'm a dreamer, but I'm not the only one. I hope someday you'll join us. And the world will live as one."Walt Disney was a dreamer of many things. He dreamed about a Tomorrowland.He saw his Tomorrowland become a reality in many ways. I keep praying I'll see our shared dream of a peaceful, unified world someday soon.