Take notice of the language authors will sometimes use when they are speculating
about things or hoping you won’t realize that the evidence is weak: “it is probable or
likely that,” (is it probable?) “clearly, this is so” (is it clear?), “it should be obvious by
now” (is it obvious?), “this undoubtably means” (is it undoubtable?) Remember that
forceful words don’t necessarily make a weak argument any more convincing.