SweatyGremlins: Yes, also in theology (scientists hate this lol) but that wasn't my point. You can trace the roots of science to various disciplines but it does not operate on them. Science is observational. For example, gravity will not change in behavior regardless of the philosophical or religious views of the observer.
It's true that gravity will not change behavior, but that is a philosophical truth rather than a scientific one. Science tells us about things that are observable, measurable, and repeatable, but it does not tell us about whether the future will be like the present.
Again this is misleading. The multiverse just solves a mathematical quirk and is based on a simple observation, our universe (we assume) exists. If one universe exists are there any limits regarding other universes existing? (not as a rhetorical question) Our universe is evidence that a universe can exist.
That's like asking if matter exists, are there any limits to the forms that matter can take? Of course it's possible for matter to take the form of a shark riding a unicorn, but contrary to memes, that doesn't invalidate anyone's argument.
As to the issue of "logical necessity." It is actually because of logical necessity that theories such as the mutliverse are being proposed. Again, it solves a mathematical quirk relating to the laws that govern our universe.
Logical necessity does not mean possible solution. If an argument has true premises and a valid form, then the conclusion follows through logical necessity.
As I understand it, cosmologists are not pushing multiverse theory as fact, it is just one potential solution. However, that one idea seems to be misrepresented by theologians quite often, at times to imply hipocracy.
http://www.reasonablefaith.org/multiverse-and-the-design-argument The article explains the problems better than I can, but one problem he has is if our universe is but one member of an infinite collection of randomly varying universes, then it’s overwhelmingly more probable that we should be observing a much different universe than that which we in fact observe.
On one level, of course faith would seem rational thousands of years ago, this was the period where faith explained existence. In modern times science fills that need so faith seems unrational. My point however wasn't on the use of the word or even if faith is rational or not. Simply, it honestly doesn't matter. Religious people are quite capable of accepting scientific findings regardless of the implications since God exists outside of our experience. The recent revival of apologetics is ultimately unnecessary, they don't need to explain their faith.
Science and faith have never been in conflict with each other. Many of the prominent scientists throughout history were theists who saw studying Creation as as something that confirmed their religious views rather than something that opposed them. The Bible takes God's existence as granted, so the faith it talks about has never been about believing whether or not God exists, but about trusting God. Trust is rational because it relies on using reason to interpret evidence. Science tells us much about things that are observable, measurable, and repeatable, but it tells us nothing about whether or not we should trust God. Faith always needs an explanation, otherwise there would be no reason why anyone had faith, so apologetics in this area are there to combat this recent illogical misconception of it.