Hear it again: What can twins teach us about human nature and personal identity?
For '90s kids, Mary-Kate and Ashley Olsen were the dominant force in twin fiction. Over the years, other generations have been fascinated by characters like Wrigley's Doublemint Twins, or Hayley Mills and Lindsay Lohan in the 1961 and 1998 versions of the film "The Parent Trap," respectively.
Twins are rich narrative terrain and raise questions about individuality.
"They're a natural kind of hook for a bunch of questions about human life in general," said Helena de Bres, a professor at Wellesley College and author of "How to Be Multiple: The Philosophy of Twins."
Her identical twin, Julia de…
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