The Side effects of Fangirling

Gravity Falls Theory

So, you might be familiar with a little thing known as the Zodiac. Y'know, that circle with the triangle guy. But this is less of a theory more of a question.

Were the characters always destined to be the zodiac, or could the zodiac potentially represent others?

Let's break it down.

Say the journals were found at a different time by different people. Would those people then become the zodiac? Or was the Zodiac strictly predicting these characters?

Let me know what you think.