The conversation between human and AI assistant.
Can data travel faster than the speed of light?
What about the recent experiments that seemed to show superluminal speeds in certain materials?
Ah, you're referring to experiments involving wave propagation in certain materials where the phase velocity appeared to exceed the speed of light. However, this does not violate the ultimate speed limit of the universe, since the group velocity, which represents the speed of information transfer, remains below the speed of light.