[dimas]

I agree that thoughts cannot control the world with our thoughts, however keep in mind that Since the early 1930's, psychologists have known that the brain emits electromagnetic waves . There is no scientific evidence that it has any impact on materialistic outcome but there is no evidence that it does not either. I know it is totally unscientific and I would say more philosophical thinking but there is a possibility that someday we will discover that our thought might have some impact on the outer world. This is one of the main concept that new age philosophy manipulates. Also our thoughts not only control our action as far as our body goes but also effect biochemistry of our brain that might affect how our body reacts to it. For example depressing thought might lead to certain physiological disorders.

[randallsquared]

There is no scientific evidence that it has any impact on materialistic outcome but there is no evidence that it does not either.

Absence of evidence is evidence of absence, especially if you have a cottage industry devoted to looking for evidence, fruitlessly.

[dimas]

Many discovered facts that are known today did not have any evidence years ago what does not indicate its absence today. Absence of results of searching industries is not an indicator thus it takes many years and many intermediate discoveries before some hypothesize are proven. Keeping mind open to possibilities is the engine of progress and discovery.