Some people have argued that because people's choices are often influenced by factors that are not relevant to rational decision making, people do not have free will. For instance, people are much more willing to register as an organ donor on their driver's liscenses if this is presented as the default option ("check this box to be an organ donor" vs "check this box to opt out of being an organ donor"). Does a person need to be rational in order to have free will?
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