This Brazilian teen is all thumbs -- really quick thumbs.
Watch Marcel Fernandes Filho break his own Guinness World Record for the fastest time to type a text message on a mobile device.
Guinness said that Filho, who used a Fleksy keyboard app on an iPhone 6 Plus, typed the following in 17 seconds without any errors:
"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."
And you thought you were good when you could write something like "ru at concrt?" while sipping a soda.
Filho reset the record Nov. 7 in Brooklyn, New York.
Last spring, he banged out the same phrase in 18.19 seconds.
A college student majoring in physics, Filho told CNN after his previous effort that despite his texting proficiency, he has his priorities straight. "I don't consider myself addicted to using smartphones, as I don't spend all day using them," he said.
Anyway, congratulations to the best in text.