Here is more about the conclusion on the theory:

Maldacena came to this conclusion when he discovered that mathematical descriptions of the universe actually require one fewer dimension than it seems.

But up until now, this principle has only been studied in something known as ‘curved anti-de-sitter spaces’ – or exotic spaces with negative curvature.

Scientists came up with these spaces as way to combine describing gravity in a three-dimensional setting while predicting quantum particles in two spatial dimensions.

This is all possible although personally I would like to see more evidence.  What do you think?  You can read more in the article by Ellie Zolfagharifard below.  Also there is a cool video below.

thanks to Ellie Zolfagharifard from Daily Mail for the great info