Can you give me an example—in which you think something is true—that doesn’t require a leap of faith?
If a person were to hold up 2 fingers on each hand, that same number would be represented by holding up 4 fingers on one hand. That is true and does not require a leap of faith.
As far as something someone thinks or believes, that could easily require a leap of faith for another to believe it.
Essentially, most physical things are provable and the psychic, metaphysical, supernatural, spiritual, etc, require leaps of faith. But surely you already knew that, didn’t you?