Quote Originally Posted by Oneironaut
Umm, it's common sense. You can't just change the world with your thoughts. If you want to prove me wrong, cure cancer with your thoughts, or make a ham sandwich with your thoughts. Do anything with just your thoughts and I will be convinced.
This is debated, and I actually believe thought helps to some extent. One example of this is the research done by a Japanese scientist, Masaru Emoto. He presented a live experiment to a large group. What he did was take two jars full of identical water. One he hid off stage, and another he placed on stage. He told the audience to focus their prayers toward the water that was placed on stage. After some amount of time of prayers, both jars were taken to be crystallized. When they came out, the water with prayers sent to it had a much different physical shape to it than the one which didn't receive prayers.

Here is a link to the water experiment: KRYON - Hamburg water experiment

Other experiments include raising the PH of water by simply have meditations focused towards it. Now I will admit this effect is very minimal, but you can't rule it out as not existing.