I think we are in need of developing completely new technologies as extend-ability of present available and knows technologies has limitations. Also, I think extending anything is always comes with an challenge of retrofitting with existing infrastructure. This prevents to development of completely new products and ideas or theories.
If we can start with fresh mind (kind of overused term, but literal meaning here is without any predefined thought or related knowledge), then we can evaluate the problem in completely different way and will result into innovations where are never imaged.
I think, now a days we have very quick access to information which keeps us on the thought of solving the problem with existing solution or our mind says that this is a common problem and solution will be available. I think that's the problem, if we start thinking as innovative solution towards the issue then I hope that we will definitely see the new world! in near future.
Just my thoughts! - Chandrajit.