BUDAPEST — It’s only Day One of the swim action of these 2017 FINA world championships, and here is the dilemma.

How many different ways are there to say Katie Ledecky is great?

In the first final in a meet she is expected to — strike that, absent something freaky, will — dominate, Ledecky set a new championship record in the women’s 400 freestyle, winning by more than three seconds.