Ideas of parallel universes and alternative histories, once confined to mere rumination about lost opportunities and fictional scenarios, are now a part of science, says guest writer Paul Halpern.
(Image credit: Getty Images/iStockphoto)
Ideas of parallel universes and alternative histories, once confined to mere rumination about lost opportunities and fictional scenarios, are now a part of science, says guest writer Paul Halpern.
(Image credit: Getty Images/iStockphoto)