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It's hard to accept the universe having a limit. I want to say that everything in the world has limits, but there are so many possible things to find outside of our Earth that the universe must be endless. This must be because life, as we have been examining it, has been with a seen through such a small lens. It is not until now that we can see our planet, let alone other planets in this universe. Redeifing what we observe is due in part by the spacial scale we have available and therefore use.

One definition for the word universe is " The totality of matter, energy, and space, including the Solar System, the galaxies, and the contents of the space between the galaxies." If we accept this as valid it "quantifies" the amount of matter, space, contents, etc, to a certain extent. The great thing about science is that it is always subject to change because life as we know it is limitless. So to say that even the universe has its limit is a big let down. Hopefully, with all of the different arrangements of im/probable assemblies in combination with the progression of science, technology, and human thought exploration will remain a neverending process.