 Characterizing Hilpinen’s account as a combination of a truth factor and an information factor seems to mask its quite radical departure from Popper’s account. The incorporation of similarity spheres signals a fundamental break with the pure content approach, and opens up a range of possible new accounts: what such accounts have in common is that the truthlikeness of a proposition is a non-trivial function of the likeness to the actual world of worlds in the range of the proposition.