The experimentally defined measurement for the speed of light per second is 299,792.458 km/second.

There are many theories about variable speeds of light. When, and if, we become better informed, we may weigh in on this work. These great diversity of equations involved, we imagine, would tell us something about the difference between visible light and all other manifestations of light.

Conversion to whole seconds from 144 to 202.  Each notation appears to represent time in different ways. First, we are considering in what ways all the constants and variables makes each calculation unique. Might it give us a different look at the nature of light within that notation? Second, the age of each notation is the current second less its Planck Time value, so the “age” of each notation is slightly different. What difference does that make? Three, all notations share the current time which can be, and will be, computed to the current second based on the most accurate measurement of age of the universe. Again, what difference does it make?

We are simply too early in our studies to make a guess!

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