Miniscule muscle movements... Reference Penn and Teller's Bullshit! episode on Ouija Boards... people work together to form words, whether they know it or not.
The experiment they did was great... they had these three Ouija board enthusiasts "contact a spirit", they kept getting the answer "yes" to their questions... Then, these same three people were blindfolded, the board was turned around 180 degrees and they continued with the "seance". They continued to ask questions and every "yes" answer, the indicator went to where the "yes" was before the board was flipped.
This was just one experiment.
There are no spirits. It is all in their minds.
Penn and Teller are great.
The experiment they did was great... they had these three Ouija board enthusiasts "contact a spirit", they kept getting the answer "yes" to their questions... Then, these same three people were blindfolded, the board was turned around 180 degrees and they continued with the "seance". They continued to ask questions and every "yes" answer, the indicator went to where the "yes" was before the board was flipped.
This was just one experiment.
There are no spirits. It is all in their minds.
Penn and Teller are great.