That's how it's supposed to work. You look at the data you have then make an informed, educated hypothesis. Then when you get more or better data you do it again and if it contradicts the previous hypothesis then fine. If only humans worked this way. Everyone thinks they do but virtually no one does because cognitive dissonance is a powerful thing.
Reminds me of when people accuse a politician of flip-flopping, as if once you form an opinion it's somehow wrong to change it. Yeah it may be politically motivated but IMO it usually is not. We need more politicians with the courage and intelligence to change their opinions when the facts dictate it, not more blowhards with closed minds sticking to beliefs they formed 30 years ago.
