Sure I do, Wind Power is essentially, "propeller" technology. We have over a 100 years developing propellers. What great technological advance do you think we missed in over a 100 years?You have no idea what will be in 70 years, stop fooling yourself.
Solar Technology? Sure, cells can get better, maybe? There is a physical limit you will reach, but either way, they take 10's of thousands of miles, and they need to be washed with water, to keep them clean, otherwise they do not work as good, and as we know water is scarce where solar is good.
And to further throw a wrench in your dream, both technologies require Oil to be built. Wind Power requires Coal, as does Solar power. Any place you find metal, that metal is made with Coal.
Using more Oil and Coal now, to produce Solar and Wind Power, kind of shows Solar and Wind are not part of a solution, but are in fact the problem.