What do you think the world will be like in 20 years from now on?

Let's see. Hm, well, I've heard of Superconductors, they will prove to be useful in the future if the scientists worked out how to access its feature in room temperature, it's currently only usable in cold temperatures less than -100 degrees Celcius. These will change the world, I should think. Trains/cars or any transportation technologies can be made more efficient by having these superconductors. Superconductors, by the way, floats! So, transportations can be made frictionless therefore use less energy. It's hard work but a lot could be done in 20 years, planes were developed in 20 years.