Hi,
I didn't want to be rude (although after reading myself again, my message may sound rude). Sorry about that. I only wanted to give you tips to make your post precise enough. Popular science should not be wrong neither. You should make it easy to read, simplified and correct.
Editing your post and changing a few words here and there should make it correct. Why don't you want to do it?
When reading again your post, you are not stating "if you slow down a photon". There is no if. You should explicitely add that this is a gedanken experiment as photons cannot be slowed down.
I have neither discussed the number of digits for the speed of light, nor the fact that I wanted you to add the other particles. You are free to do what you want. Photons are not the only massless elementary particles. Why don;t you want to remove the 'only'?
You cannot deduce c from other fundamental constants, which is what you quote.
Spacetime exists for all particles, including photon. This makes no sense to say that time is non existent. The photon proper time is zero, and this is maybe what you wanted to discuss. Which is a different story than saying time does not exist.
"simplified and correct"
Pi = 3.1416 == Simplified.
It is not RIGHT, yet it serves the purpose many give to it.
"Editing your post and changing a few words here and there should make it correct. Why don't you want to do it?"
Because once I start doing that, It'll become a an unstoppable rock rolling down the hill... Probably causing the dis-interest in the public I'm aiming to.
"You should explicitely..."
It is explicitly implied.
"You are free to do what you want. Photons are not the only massless elementary particles. Why don;t you want to remove the 'only'?"
You're right about that... I'll change the word for is one of (also covering the possibility that another particle other than the Gluon is found).
"You cannot deduce c from other fundamental constants, which is what you quote."
Sadly. I am forced to: simplification.
"Spacetime exists for all particles, including photon."
Yes, yet the photon does not "experience" it... " if we could see from the photon's point of view: In an nonexistent instant, we'd be at the star"
http://phys.org/news/2011-08-photons-view.html