I was reading through this collection of short essays from theologians, scientists and thinkers each responding to the question "Does the Universe have a purpose?" which was suggested to me in a response to my question here on the purpose of the universe. On p. 2, in an article entitled "Unlikely," Laurence M. Krauss, a professor of physics and astronomy at Case Western Reserve University, says:
"Of course, nothing would stop science from uncovering positive evidence of divine guidance and purpose if it were attainable. For example, tomorrow night if we look up at the stars and they have been rearranged into a pattern that reads, “I am here,” I think even the most hard-nosed scientific skeptic would suspect something was up."
This, as I understood, means that for physicists, maybe, and only maybe a phenomenon like stars lining up in "I am here" fashion, can be regarded as a miracle. Then I thought: is there anything special in nature that can cause a rational person to think of that phenomenon as a miracle?
What should a rational person consider as constituting a miracle? For example, if someone appears now and brings dead people back to life, why should a rational person believe his/her action as a miracle? Maybe because he can't do the same, or because he knows that returning a dead person back to life is impossible, or maybe he/she doesn't accept that action as miracle.