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Katie Ledecky's world-record swim causes Twitter to go crazy

United States' Katie Ledecky celebrates winning the gold medal in the women's 400-meter freestyle setting a new world record during the swimming competitions at the 2016 Summer Olympics, Sunday, Aug. 7, 2016, in Rio de Janeiro, Brazil. (AP Photo/Matt Slocum)
(AP Photo/Matt Slocum)

Katie Ledecky absolutely dominated the 400 freestyle race in Rio, breaking her own world record in the process with a 3:56:46. She was so far ahead of silver medalist Jazz Carlin, that Twitter exploded with reaction to her incredible performance.