Brazilian teen, Marcel Fernandes Filho, recently earned the title of "World's Fastest Texter," securing his place in history and in the Guinness Book of World Records. To earn the title, Filho had to text the following message on his smartphone:

"The razor-toothed piranhas of the genera Serrasalmus and Pygocentrus are the most ferocious freshwater fish in the world. In reality they seldom attack a human."

The teen had to copy the message exactly, using perfect spelling, capitalization, and punctuation. And he had to type it in a time faster than 18.44 seconds - the time of the previous world record holder.

Filho's time? 18.19 seconds.  

Here's a clip of the speedy texter in action: 


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