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Simone Biles is in a league all her own.

Often referred to as the greatest of all time, Biles executes elements that boggle the minds of onlookers, fellow gymnasts and now physicists.

A super slow-motion video of Biles’ floor routine at the U.S. Gymnastics Championships is going viral, showing the gymnast appearing to defy gravity.

Biles’ remarkable floor routine has propelled her to a two-point lead going into the final day of the U.S. Gymnastics Championships.