On Tue, 28 Jun 2022 14:36:22 -0500, the following appeared
in talk.origins, posted by Bill <fre...@gmail.com
>In 2018, the Planck Collaboration updated its estimate for the age of the
>universe to 13.787ą0.020 billion years. Does this really mean anything? We
>measure time based on what we experience on Earth but can those measurements
>apply to the universe itself? Some think so and calculate time on units that
>we can determine through observation. But what is being observed?
>We could, for convenience, establish a unit of time based on the age of the
>universe where 13.787ą0.020 billion years mentioned above becomes our unit
>of measure; it becomes 1.
>We know that this unit is not constant, it varies because the medium whereon
>it exists, changes. At the very beginning time exits in nanoseconds, a few
>milliseconds later the medium expands several thousands of times, a few
>milliseconds after that it has expanded still more. There is no point of
>stability giving so no point reference and no unit of time applies.
>So, what does 13.787ą0.020 billion years really mean? Are we talking about
>actual Earth years? since the universe, and time, are stretched out by the
>expansion of the medium of space, do any of our measurements mean anything,
>is it even possible to measure time?
Sure. Look at Mickey's hands; they tell you quite precisely.
>Beats me ...
Seems almost everything does...
"The most exciting phrase to hear in science,
the one that heralds new discoveries, is not
'Eureka!' but 'That's funny...'"
- Isaac Asimov