There's a broader question in the OP. What causes one to have faith in something unproven? Do logical thinkers have a more difficult time with this and why?
No need to go into specific religious dogma.
Who says you have to believe everything to believe in something? There's a broader question in the OP and no specific religion was named.
Well it's safe to assume that most of us are Christians, so I'm not going to talk about Buddha.
So, people who believe in Jesus should ignore the fact that, Moses would have needed 1.3 seconds to collect a species and bring it into the ship, in order to gather all the species on Earth, if he would have lived for 60 more years from the point he started everything?
Well, unless God beamed all the animals on the ship.
And there's more that doesn't make sense in this story.
In the bible it didn't say that the glaciers melted and that's where the water came from. It states that it rained, until the highest mountains were covered by water. (from what I remember)
Mount Everest has 8796 meters, where the hell would all that water come from? We don't have so much water.