Things seem to be working now. FULLY OPERATIONAL CHAT APPLICATION!
Researchers Develop way to Control Speed of Light, Send it Backward
That’s the headline at phys.org, who Should Know Better. But that site is not as well-regulated as you might think from the impressive title. Phys.org is to physics as Business Insider is to business — poorly moderated group blogs around a supposed focus of interest.
I’ll cut to the chase. A comment illuminated the problem with the post.
Comment author: antialias_physorg
“*Sigh* this is group velocity.…