Tuesday, March 13, 2007

Slowing down the universe

It is possible that the current accelerating expansion of the universe will slow down and stop. There's a recent arxiv paper about it here, in which it seems to be argued that a natural process may lead to deceleration.

On the other hand, Frank Tipler believes that expanding intelligence in the universe will cause its slowing and eventual collapse. (But with the happy ending of the Omega Point, which is the equivalent of eternal heaven.) I like the idea; it's good to know there is useful work to be done until the end of time.

As I mentioned in a previous post, Frank Tipler is writing a book in which he maintains that the most important miracles of Christianity can be explained by the same mechanism to be used to stop the universe expanding. Here's a sample of his ideas:

It is this mechanism of baryon annihilation via electroweak tunnelling that could have been used to accomplish ALL of the miracles described in the Gospels, in particular the Resurrection. I point out in my book [1] that Jesus' resurrection body, as described in the Gospels, has all the essential properties of the computer emulation resurrection bodies we all will have in the far future. The property most difficult to duplicate at the lowest level of implementation is the sudden dematerialization (vanishing from the appearance of His disciples) and re-materialization (suddenly appearing inside a locked room). De-materialization can be accomplished by electroweak quantum tunneling, which violates baryon number and lepton number conservation. The key reaction would be proton plus electron goes to neutrino plus antineutrino. This would convert all the matter in Jesus' body into neutrinos, which interact so weakly with matter that a person in a room with Jesus would see only Jesus appear to vanish. (If the matter of a human body were converted into photons rather than neutrinos, this would be equivalent to the detonation of a 1,000-megaton H-bomb, assuming Jesus weighed 178 pounds ([27], p. 2). The people of Judea would notice this, though the disciples would not, since they would be vaporized.) Materialization apparently out of nothing could be carried out by reversing the process . The Resurrection is then merely an example of first de-materialization of Jesus' dead body, followed by the materialization of a living body. The Resurrection, in other words, is a profoundly different process than the mere resuscitation of a corpse.

I must admit that I have not even read all of that article. It is very long, and deals with the Virgin Birth, Turin Shroud and even original sin. All are explained in a quasi scientific way (to the satisfaction of Tipler's mind, anyway.)

I don't think he is mad; he's a physicist/cosmologist who seems to have done good work for many years. However, I reckon his views are going to be taken as so eccentric and on the fringe that his book might not even be reviewed by the science community.

There is more I want to say about miracles, but don't have time today.

1 comment:

  1. Excellent article in The New York Times today, primarily talking about the possible gails of dark matter and dark energy.

    No mention of miracles or exploding bodies, but still, you'd likely enjoy the read.

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