If you're having an existentialist crisis and have been questioning every life decision you've ever made since binge-watching Black Mirror, you're not alone.

Since Series 4 dropped on Netflix last week, Twitter has been full of theories, sneaky details you might have missed and lots of fangirling, as well as the revelation about why it's called Black Mirror.

Are you ready for this? You'll kick yourself when you understand. A tweet by @bleuvaIentine has gone viral and had over 30,000 retweets, which reads:

"Am I the only one who didn't know Black Mirror was called Black Mirror because when you look at your phone or computer screen after it's turned off you see your reflection on the black screen...it's a black mirror.. [sic]"

What. The. F.

Arkangel Netflix

This isn't the first time the meaning has gone round, though. Speaking to Channel 4 back in 2014, creator Charlie Brooker explained, "What I took it to mean was when a screen is off – when a screen is off it looks like a black mirror.

“Because any TV, any LCD, any iPhone, any iPad – something like that – if you just stare at it, it looks like a black mirror, and there’s something cold and horrifying about that, and it was such a fitting title for the show.”

"I mean, I don’t know what else we would’ve called it – Spooky Technology Time?! It would’ve been rubbish", he added. "I quite like the fact that people are watching it on their TV or on their laptop, or their smartphone or whatever, and then as the end credits start running and the screen cuts to black, they see themselves reflected."

Hang The DJ Netflix

Woah. Anybody else keen to watch all four series of Black Mirror again in the hope of spotting even more hidden details?

Dusty Baxter-Wright Senior Entertainment & Lifestyle Writer Dusty Baxter-Wright is Cosmopolitan's Senior Entertainment and Lifestyle Writer, covering celebrities, movies, TV and books as well as travel, interiors, food and drink on a daily basis.

This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. You may be able to find more information about this and similar content at piano.io