We're just as surprised as you are, but according to The Explainers it's the only explanation for how a jolly old man can deliver all of those presents.
The Explainers is an agency that – you guessed it – create videos explaining a range of different concepts, and it has looked into Santa Clause and some of the findings may shock you.
Watch the video for yourself below:
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Have something to say on this? Share your views in the comments section below. Or if you have a news story or tip-off, drop us a line at adnews@yaffa.com.au
Sign up to the AdNews newsletter, like us on Facebook or follow us on Twitter for breaking stories and campaigns throughout the day.