I believe John Loftus first proposed it. He called it the "outsider's test for belief". As a Christian, you are an outsider to Islam. The apologetics of that faith is not convincing. You don't believe Mohammed flew to heaven on a winged horse, for example. As an outsider, you aren't really even tempted to try to believe it. It's just silly...because you're an outsider.
Now the OTB is for you imagine standing outside your faith and hearing apologetics. Can you really believe that?
I imagine you wouldn't find this convincing since you say you were outside and are now inside.
But just because an outsider may find all religions equally convincing or not convincing, doesn't mean that is true. If you could go back and talk to a man a thousand years ago and say "we have been to the moon", he would say it was equally crazy as saying one has been riding a dragon.
Upvote
0