If time is a measurement, than what physically exists is perfectly conserved, as it passes from one macro-state to the next. It is only these macro states that are created and consumed.

Lawrence B. Crowell

Doesn’t the Uncertainty Principle essentially show that some information is destroyed in the very process of measuring other information?

Since I view time as a consequence of motion, rather than the dimensional basis for it, I think monumental amounts of information are destroyed and replaced every moment. I would posit the current credit meltdown, as well as the rest of history, as proof.

Lawrence B. Crowell

According to Inflation theory, it is many, many times the size of the visible universe. To the point that, from our perspective, it is just about spatially infinite. Curvature seems mostly a function of the time dimension, in that the analysis of redshift and CMBR says it is only13.73 billion years old.

http://en.wikipedia.org/wiki/Cosmic_inflation

“Cosmic inflation has the important effect of smoothing out inhomogeneities, anisotropies and the curvature of space.”

Basically it explains how the factors which suggest an infinite universe can exist in a finite model.

Well, the free parameter in question is a pretty important one, in my view: the energy scale of inflation. Pinning down the energy scale of inflation is a pretty big step in making any significant statements about what inflation actually is.

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In cosmology the time dependency of the metric coefficients means there is no Killing vector which as an isometry defines an energy conservation. As strange as it might sound, conservation of energy in cosmology is not definable. The only conservation law we really have is the continuity equation

$latex
\nabla_aT^{ab}~=~0
$

plus conservation based what ever spatial killing vectors might exist.

Lawrence B. Crowell