Watch this boy become a man in just over a minute in a time-lapse video comprising more than 2,500 selfies.
Hugo Cornellier took a selfie every day for seven years from the age of 12.
When he turned 19, he decided to compile them into a fascinating time-lapse video which shoes how the tween becomes a teen and then a bearded man.
Since Hugo, from Montreal, Canada, uploaded the 1 min 23s video to YouTube, it has been viewed more than 1.2 million times.
And it is compelling viewing.
Throughout the sequence, the teenager's eyes stay at the centre of the frame as everything around him changes – especially his face, which transforms from round and slightly chubby to strong and chiselled.
And throughout the entire seven years, Hugo doesn't smile once!
Have a look – but try not to blink. You might miss a year!
More on Parentdish: Dad takes photo of his 18-year-old daughter every single day of her life
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