The mere fact of having a belief is some evidence of its truth, robustly so in a well-maintained mind, when within scope of what the mind was actually trained on. Some beliefs don’t have clear explicit arguments going for them, and that’s not a reason to ignore them as evidence. Such beliefs are only rational evidence though, a personal argument whose truth is hard to communicate without it already being self-evident to others.
The mere fact of having a belief is some evidence of its truth, robustly so in a well-maintained mind, when within scope of what the mind was actually trained on. Some beliefs don’t have clear explicit arguments going for them, and that’s not a reason to ignore them as evidence. Such beliefs are only rational evidence though, a personal argument whose truth is hard to communicate without it already being self-evident to others.