(March 18, 2021 at 9:26 am)John 6IX Breezy Wrote:(March 17, 2021 at 8:17 pm)polymath257 Wrote: If there is no observational difference, then there is no real difference.
Is this in reference to design? If so two comments:
1. You cannot arbitrarily decide there's no difference—you have to show it. For example, there's no observable difference between a heliocentric and geocentric universe, unless you know to look for a parallax effect out in the distant stars. In other words, saying "I can't think of anything therefore there's no difference" is not a good argument.
2. And if you are right and there is no difference, you not only forfeit your ability to say Intelligent Design is wrong, you also don't get to arbitrarily decide your perspective is the default perspective.
Actually, there are observational differences between a geocentric and a heliocentric universe. For example, the brightness of Venus. The positions of Mars. Those were noted as problems even before the other data for the heliocentric model were found (like the actual phases of Venus, the moons of Jupiter, the size of the planetary disks over time, etc).
The default perspective is the one that sticks closest to the evidence. The design model introduces a host of new assumptions without supporting observations and is legitimately discarded on that basis if there is no observational differences.