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Re:Physics Has Demoted Mass by lkrubner on Sunday November 12, 2017 @11:12AM (#15681282)
A particular advantage to intuition comes with the famous e=mc^2. Since c is 1, and 1^2 is 1, e=m.

That is clever, but you've already adjusted the mass to take into account the fact that you are now setting c=1. This reminds me of computer programming where, for the sake of an easy-to-read clarity, I decide to take one line of code and make it two. Basically, instead of doing this:

e=mc^2

You have decided to make it two lines of code:

m=mc^2

e=m

I often do that, especially if I'm working with junior devs and I want the code to be as easy as possible for them to read (90% of the time).

It's clever, but everyone should remember the assumption that allows this: the mass has already been adjusted to reflect the reality that of c=1.

Re:Physics Has Demoted Mass by johncolanduoni on Sunday November 12, 2017 @11:38AM (#15681380)
Except you would otherwise have at least one of c, hbar, boltzman’s constant etc. in virtually every equation and now you don’t. You get a lot more mileage out of it than just simplifying one line.