Whatever you think about the discussion going on in this WordPress Blog about the nature of reality, nothing quite beats the current speculation about metastable universes as revealed in this article in the Guardian which can be read in more detail in this more science-oriented article.
Essentially, now that we know the value of the Higg’s Boson, we now have to cope with the fact that this value is dangerously close to the tipping point of our universe and another possibly more stable universe. And the question is: are we about to topple into another more stable position that in the process destroys everything in the path of an ever-expanding horizon at the speed of light?
As the article makes clear, if we were to tip over to another state of stability (one which is at the naturally most stable position for energy and mass in the universe) none of us would know about it but all of us would cease to exist as suddenly as the propagation of light from the point at which the transition takes place.
And given that there may already be more of the universe beyond our horizon insofar as that the light from that region is so far away that it can never reach us, how do we know that this fateful transition of states hasn’t already taken place,
But not easy to understand.