Thread:Comments:Scientists conclude that the universe may expand forever/Curses!/reply (5)

Theoretical evidence, precisely- which begs the question,: Aren't the terms "Dark Matter", as well as "Dark Energy" for that matter merely theoretical metaphors for the multitude of observations which seem to contradict our current mathematical explanations of gravity, and our understanding of energy? Rather than embodying a literal description of the phenomena observed, these terms seem to be convenient substitutes for the gaps in our empirical knowledge.