I'd claim the opposite. The weaker a statement, the more flexible it is. A pretty much maximally weak statement is "something will or will not happen". It's tru

I'd claim the opposite. The weaker a statement, the more flexible it is. A pretty much maximally weak statement is "something will or will not happen". It's true with 100% certainty. And it's quite useless, since it doesn't actually state anything meaningful. The more concrete and thus stronger you make a statement, the more you risk it turning up false. There are certainly outliers and exception, but there should be a pretty good correlation between strength of a statement and its likelihood of eventually not turning out true.