Recent content by james.goetz

Chronos, You're still playing a false analogy. Apr28-12, 11:06 AM https://www.physicsforums.com/showpost.php?p=3888197&postcount=55

Hi Impaler: I am not making any suggestions of some ultimate time. But ticks on a clock are not geometric time coordinates. Here are time coordinates t1 and t2: t1 = 2012/05/02 23:59:00 GMT and t2 = 2012/05/03 00:00:00 GMT As of the time of this post, t1 and t2 have no phenomena. The time...

Hi jobigoud, +∞ and -∞ are not real numbers and time coordinates are real numbers.

An infinite expansion never ends and there is no final time coordinate. You possibly sound as if you treat infinity as if it were a real number that could be used as a coordinate. For example, there is a countable set with an infinite number of positive integers and infinity is not a real number.

Hi Haelfix, You appear to have missed a major point in my original point or neglected to mention it above. I start with an example of observation. A flat universe with an incomplete will infinitely expand and never have an infinite age. For example, the observed universe will have an age of...

Hi Chalnoth, you do not understand infinity. For example, a flat universe with an incomplete past will never age an infinite number of Planck times. For example, after the elapse of a googolplex raised to the googolplexth power of Planck times, then the universe would not be close to an age of...

Hi Impaler, I am not looking at merely time coordinates but elapsed time. These are two different things. I agree with you that there are no limits to time coordinates that are independent of phenomena.

Hi Mark, No, I never argued against an infinite chain of causality in the case of a finite elapse of time in a continuum, if that were possible. My argument refutes the possibility of an infinite chain of causality in a time lattice but possibly not in a finite time continuum. Zeno would...

Hi Mark, This analogy is problematic. For example, I do not object to an infinite number of time coordinates or an infinite number of space coordinates. But I am specifically referring to elapsed time and I unsure of what in space compares to elapsed time. The closest comparison that I can...

Hi HallsofIvy, I rarely if ever use the adjective "unbounded" in a mathematical sentence, but that might work. However, I used the adverb "infinitely" and I see no adverb for "unbounded." I guess since I have not used "unbounded" in many sentences I needed to consider it in a few. For...

Hi Mark, A key to understanding this is to understand the difference of "actual" and "potential" that I noted in the third paragraph of the original post. For example, you understand that an individual clock will never tick and infinite number of ticks in a case where nothing ever bounds the...

Hi Chalnoth, I never said that nothing happened before the big bang, but that there is no infinitely lapsed time. Likewise, models that require infinitely lapsed time such as eternal inflation with no beginning, a cyclic universe, [or] a non-zero Hamiltonian should not be considered scientific...

I posted major revisions at An Infinite Lapse of Time is Impossible and Unscientific An Infinite Lapse of Time is Impossible and Unscientific I plan to discontinue replies at this thread and pick up on that thread. Thank you for all of your contributions to this thread.

Take two: This post evaluates the concept of an infinite lapse/passage of time and concludes that an infinite lapse of time is impossible, which was proposed in the sixth century AD by John Philoponus. Likewise, models of cosmology that require infinitely lapsed time such as models of a...

Hi thorium1010: Yes, that is what I meant by "always."