How did the events at the end of Cage of Eden occur?


In _Cage of Eden_ , near the end, instead of plane crash in the beginning, we
learn that the students

> did not crash on an uninhabited island but went into the future. It isn't
> clear how they actually get to this _future_.

I am not sure if I just missed the part where they explained a bit how they
got there or if it is just not properly explained.

How did the events at the end of _Cage of Eden_ occur?




It is never explained in the manga how they get

> to the future.

When they describe the incident, it looks like a wormhole that caused a big
disruption in time.

> In physics, an Einstein-Rosen Bridge (or wormhole) is a hypothetical
> topological feature of spacetime that would be, fundamentally, a "shortcut"
> through spacetime.[[ref]](http://en.wikipedia.org/wiki/Wormhole)




It is never explained in the manga how they get

> to the future.

When they describe the incident, it looks like a wormhole that caused a big
disruption in time.

> In physics, an Einstein-Rosen Bridge (or wormhole) is a hypothetical
> topological feature of spacetime that would be, fundamentally, a "shortcut"
> through spacetime.[[ref]](http://en.wikipedia.org/wiki/Wormhole)

