In a paper (Visions for all) published in its April 7th 2012 issue, Science News summarizes
the work of Tanya Luhrmann about the God experiences that many people claim to
have felt. After four years of research, the anthropologist believes that she
has proved the surprising conclusion that normal people can have
hallucinations. But since hallucinations are common in diseases like
schizophrenia and psychosis, she predicts that people who have many of these
experiences are likely to end up psychotic. In particular, the article says, it
is possible that Joan of Arc would have become psychotic if the British had not
burned her.
This argumentation has a hidden
premise. If we make it explicit, the associated reasoning can be summarized as
follows:
- God does not exist.
- Therefore all reports on God experiences
must be hallucinations.
- Many normal people claim they
have had God experiences.
- Therefore many ordinary people
suffer hallucinations.
- Having many hallucinations can
lead to schizophrenia or psychosis.
- Therefore Joan of Arc would
have become psychotic if the British had not burned her.
But if the first premise, the hidden
premise, is false, (i.e. if God exists), the whole argument falls to the
ground, for some of those God experiences could be genuine rather than
hallucinatory. In particular, the unwarranted and useless conclusion about Joan
of Arc is disavowed.
It is a shame that serious journals
like Science News fall in these fallacies that rely on hidden assumptions which
are unscientific, unproven and even worse: impossible to prove.
Manuel Alfonseca
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