Re: space time

*** wrote:
Light-year is also strange because it is a limited measure. Only so
many kilometers in a earth-year, fewer but never more.

You are over-analyzing the definition of "light year"... nearly to the
point of comedy.

The definition "A light-year is the distance light travels in 1 year"
is an approximate definition... as you have correctly pointed out.

When confronted with the fact that a "year" changes with time, any
scientist worth their PhD will quickly switch from using light-years
(as a distance measurement) to mega-kilometers or some other
well-defined distance standard.

Dwib

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