“Believing” just in that is IMO a rational belief (until proven otherwise, of course).
Bad epistemology.
If a completely trustworthy person rolled a normal six-sided die, and told you the result is an even number—is it “rational” to believe that the result was 6 ? After all, it hasn’t been proven otherwise. No, the ONLY rational belief in that situation is assigning an equal probability to 2, 4 and 6.
If you go around asking “am I allowed to believe this?” for things you want to believe, and “am I forced to believe this?” for things you don’t, you’re shooting yourself in the foot.
Bad epistemology.
If a completely trustworthy person rolled a normal six-sided die, and told you the result is an even number—is it “rational” to believe that the result was 6 ? After all, it hasn’t been proven otherwise. No, the ONLY rational belief in that situation is assigning an equal probability to 2, 4 and 6.
If you go around asking “am I allowed to believe this?” for things you want to believe, and “am I forced to believe this?” for things you don’t, you’re shooting yourself in the foot.