If people living in 1915 had any idea what the world would be like in 2015, they wouldn’t have been staggered by the changes. Taking this into consideration, contemplating what the world will be like in another 100 years is one well worth doing. Stretch wrap is an excellent example of something that didn’t even exist 100 years ago, and is something that is taken for granted today. How it will fit into the future may be a great exercise for the mind, but it is also what will help shape the actual future. If you have any doubt, just think about Star Trek and those weird little phones they used. Those are real less than 50 years later, and actually getting more advanced by the year.