Are you serious or are these satirical comments? I'm hoping this is satire, because obviously the elucidation of the nature of reality always makes a difference. Like...seriously...this is pretty obvious that I'm baffled why you're asking "What difference does it make?"
John Chrysostom thought the Earth was flat.
What difference did it make when the truth was found out?
It suddenly made the earth more mutually "discoverable" by the interaction of various civilizations. Instead of the civilized world being bounded by an infinitely-extending sea, where the unknown "other" lurked, it became apparent that the world -- as a spheroid -- was all interconnected by finite bodies of water and land. So an unprecedented cross-cultural exchange of general knowledge, science, philosophy, and art began that would lay the foundations for the emergence of planet-altering, environment-controlling technologies.
So, yeah, the truth kinda made a difference.
Dan Brown famously said something like "Christianity survived Darwin and Copernicus. It can survive a New Hampshire novelist"Nobody will become Hindu because the Earth is billions of years old.
Nobody is claiming that, so it's an irrelevant tangent.
Edit: it has struck me that LamarckNewAge's post may have been meant for Faith (although it seemed to be a general reply). If that is the case, then his/her/its points make sense.
Edited by Genomicus, : No reason given.
Edited by Genomicus, : No reason given.