I hope you're not implying that because scientists believe something the belief must have a scientific basis. Some scientists believe that intelligent life is to some degree likely, but without any evidence whatsoever.
I'm not sure how genuinge you are with this line. It has been explained to you countless times why this is not simply the case. There is no direct evidence. We have our understanding of Earth, Humans, the Universe, etc. We have nothing of God.
Some scientists also believe that prayer works and that God exists.
This tells us nothing. I don't know what your purpose was but it is likely a fallacy.
We were talking about people who believe that intelligent life exists elsewhere in the galaxy, not people who have no opinion about it at all until proof is found.
You have completely missed the point. Forming an opinion as to the likelihood of something is not rational so far as the belief does not exceed the evidence.
Christians don't simply hold an opinion, they
act on faith. They don't simply hope that God hears them they believe that he does. Scientists don't believe that the aliens here them they hope that they do. Big difference. If scientists gave specific attributes to the aliens without evidence then I would agree that they were irrational.
Prayer and the existence of intelligent life elsewhere in the galaxy are both unfalsifiable. It seems that to look for or expect proof of the unfalsifiable is irrational. Some Christians live their lives believing that prayer works without looking for or expecting proof, whereas some scientists spend a great deal of time and money searching for proof of intelligent life elsewhere in the galaxy. It would seem more rational for Christians to admit that their belief is based on faith rather than fact than for those scientists to think that their belief is based on science.
This makes no sense whatsoever. If the scientists behaved in such a way as to demonstrate that they believed that there aliens to the degree that they started telling us the attributes of the aliens and that they believed the aliens were listening then I would believe them irrational.
You want to distill everything down to an opinion and then equate opinions. This is wrong. The actions of the individuals demonstrates just how wrong it is.
If I am of the opinion that a leprechaun lives under my bed and I take care to leave fresh water for it every morning to ensure that it has something to drink then that IS irrational.
Scientists don't behave that way.
Christians do.
Emphasis mine. The key word here being "likely." It's an opinion, rather than fact. Still, it seems more rational to pray to a God who you believe is likely listening than to search for intelligent life that you believe isn't likely listening.
This is nonsense. You are saying that it is more rational to give my leprechaun water every morning because I believe it is likely living under my bed than for a scientist to hold an opinion that there is a degree of likelihood that ET's exist.
I imagine that some thank God and give God credit. I also imagine that most of them admit that their belief that God granted their prayer is based on faith rather than fact, and do consider the possibility that it was a coincidence. If they consider the possibility that it was a coincidence (i.e. admit that their belief in prayer is an opinion rather than fact), is their belief rational?
Many Christians simply say "praise Jesus" when the find their lost car keys after having prayed for them, not "wow, I wonder if that was just a coincidence". I was a Christan and I have known many Christians throughout my life. I don't know of any that live and act as if it all might just as well be a coincidence. My experiences are anecdotal. Do you have evidence that Christan's don't believe that God answers their prayers?