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Study Suggests Free Will Is An Illusion (iflscience.com)
An anonymous reader quotes a report from IFLScience: A new paper published in the journal Psychological Science has attempted to define and investigate the subject of free will. By asking participants to anticipate when they thought a specific color of circle would appear before them, something determined completely by chance, the researchers found that their predictions were more accurate when they had only a fraction of a second to guess than when they had more time. The participants subconsciously perceived the color change as it happened prior to making their mental choice, even though they always thought they made their prediction before the change occurred. They were getting the answers right because they already knew the answer. "Our minds may be rewriting history," Adam Bear, a Ph.D. student in the Department of Psychology at Yale University and lead author of the study, said in a statement. The implication here is that when it comes to very short time scales, even before we think we've made a conscious choice, our mind has already subconsciously decided for us, and free will is more of an illusion than we think.
If you are so sure it exists, just prove it
It's hard to prove that free will exists but easy to show that the conclusions of this study are not proven. All they have shown is that the brain can subconsciously process information and provide it to the conscious mind. The very fact that when given longer the people got more answers wrong proves that the conscious mind can choose to ignore that information and hence free will can still exist in that choice.
The high speed reaction results suggest that we can program our low level, high speed firmware to return the result we are looking for which makes sense from a survival perspective because you don't need to have higher level reasoning and choice take place when a predator jumps out of a bush at you. So, if free will does exist, all they have shown is that we can use it to pre-program our brains to react to certain situations in a predetermined way. However the choice to do that was still potentially a free one and although some of these reactions may have been pre-programmed at birth there is nothing to say that they cannot be changed later.