Situation 1:
A tells B that an old relative passed away.
B doesn't have prior knowledge of this
B says, > he is an old man...
(or something like that which implies that she is not surprised because old people die one day) - faulty logic, granted!
Situation 2:
A and B are sitting in a porch having a casual conversation
A: > It is unusually hot today, isn't it?
B: > Yeah, it is peak summer
What is one word that describes B's attitude of saying what others informed her is obvious and unsurprising though she (B) has no prior knowledge about it.