By the way, concerning this possible ‘universe encompassing city’ I spoke of, I read in the very interesting Ray Kurzweil site the following in an article by James N. Gardner:
"Traditionally, scientists have offered two bleak answers to the profound issue of how the universe will end: fire or ice. The cosmos might end in fire–a cataclysmic Big Crunch in which galaxies, planets, and any life forms that might have endured to the end time are consumed in a raging inferno as the universe contracts in a kind of Big Bang, but in reverse.
Or the universe might end in ice–a ceaseless expansion of the fabric of spacetime in which the thin soup of matter and energy is eternally diluted and cooled. Under this scenario, stars wither and die, constellations of cold matter recede further and further from one another, and the vast project of cosmic evolution simply fades into quiet and endless oblivion.
The Intelligent Universe proposes a third possibility: that the universe might end in intelligent life. Not life as we know it, but life that has acquired the capacity to shape the cosmos as a whole, just as life on Earth has acquired the ability to shape the land, the sea, and the atmosphere. As Princeton physicist Freeman Dyson puts it:
Mind, through the long course of biological evolution, has established itself as a moving force in our little corner of the universe. Here on this small planet, mind has infiltrated matter and has taken control. It appears to me that the tendency of mind to infiltrate and control matter is a law of nature."
See:
kurzweilai.net/meme/frame.html?main=/articles/art0690.html
All this reminds me of the Omega-project as introduced by Pierre Teilhard de Chardin, who of course was inspired by Jezus’: “I am the Alpha and Omega.”
I don’t know to what extend all this is compatible with the Catholic doctrine, but to me it’s inspiring stuff.