Taka, Are (a) and (b), with their parenthetical elaborations, quoted from your book? If so, I wonder where the distinction arises between the meaning of 'it is said' or 'there are said' and 'it is a fact'. If the 'billion billion' is not a fact, but just something that is said, how can saying that most of those billion billions have a short life span be more of a fact than something said ?
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AnonymousInteresting. "More of a fact," that is, a kind of a "generic" statement? (Sorry if I've misunderstood you.)Not quite – see Davkett's previous post for the context.
(a)There are said to be a billion billion insects on the earth at any moment