[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.