When asking a question, it is helpful to clearly define your terms. If "belief' means something as to which you don't think there is a material level of doubt, say a 98% level of certainty, the two standard deviations from the mean spot that the law refers to as "beyond a reasonable doubt," than that takes a lot off the table that you think are probably true, but not almost certainly true. Matters of taste are not right or wrong. We all hear and see things differently, sometimes literally, say if we are color blind.
And then there is the matter as to what is evidence. Evidence as defined by the scientific method? That reminds me of yet another story. Back when I was in the 4th grade long, long ago, I exclaimed in class that I thought that North America and South America must at one time been hooked up to Europe and Africa. I said the shape of the lines were just too perfectly matched to fit in with each other without much in the way of cracks, like breaking an egg with only a few small chips falling on the floor, so the two pieces of the shell fit together quite well.
The teacher said no, there is no evidence for that. I should have said at that point, "be patient, there will be." Is that a belief in something with no evidence? Fast forward 10 years later, and as a new student at the University of Chicago, where part of our orientation was listening to lectures by professors in various disciplines to better ascertain what we might be interested in, a geologist spoke about yes, you guessed it, plate tectonics. I felt like telling him I already knew about all of that. What I don't have a handle on at all, is the theory of relativity. That seems like voodoo science to me, but heck the cognoscenti all say it is true. I prefer not to defer to authority when I can avoid it, but I guess on this one resistance is futile.
Finally, does wrong mean foolish or evil, or just green variety ignorant?
As to issues where nobody knows the answer, it's fun to speculate anyway. If that is "wrong," where frankly, my dear, I don't give a damn.
Oh, just what do I believe as to which there is no evidence?
1. That I am a good person?
2. I am kind of stuck after that given my definition. I sure there are many such things, but hey, my English literature teacher in High School, said that awareness of ignorance is the first step to knowledge. I count on all of you to assist me to become better aware of my ignorance. I need help! Heck, I used to think I had a pretty good handle on economic theory, but that is just so yesterday now. Sad!