Interstellar Movie: Wormholes & String Cosmology Explained

[kuartus4]

Hello. In the movie Interstellar with Matthew McConaughey, there is a scene where wormholes are being explained. The characters say that the wormhole passage is a passage way through 5 dimensional space. Also when they are going through the wormhole they say they are passing through the bulk, which I believe is a reference to string cosmology. According to Wikipedia the bulk is a higher dimensional space.

My question is, is that how wormholes(if they can or do exist) work? By going through some higher dimensional space?

 

[Khashishi]

It's not necessary to have a higher dimensional space to have wormholes, but that's one possibility. The whole concept is super speculative.