This hand swap optical illusion is wildly confusing the internet

Hang on a minute...
 By 
Sam Haysom
 on 

There are some things that you either get straight away, or you don't get at all.

The viral video below, in which Twitter user @kay_dera demonstrates a slightly mind-boggling hand swap trick, is the perfect example of this.

Pay close attention:

Did you get it?

Well, some people had it instantly.

Others, meanwhile, were less sure.

For anyone still wondering what the heck is going on, here's a handy slow-mo.

Yep: all you have to do is straighten the hand at the back, and clench the one at the front into a fist.

Now go forth and impress the world.

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Sam Haysom

Sam Haysom is the Deputy UK Editor for Mashable. He covers entertainment and online culture, and writes horror fiction in his spare time.

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