- God did not create the world in six days.
- Women in the first century AD could not conceive children without sexual intercourse.
- People, once dead, do not come back to life.
- There is no personal-yet-infinite (i.e. Triune) God.
What makes us think that granting #1, and only #1, will make Christianity more palatable to “reasonable” people? Will #s 2-4 suddenly no longer be problematic?
Wiser Time 
So far as I’m aware, there’s no consensus (or, really, even scientific opinion) on #4. The existence of God isn’t a matter that can be investigated scientifically.