Answer
A very large object has a smaller uncertainty about its current position.
Work Step by Step
A large particle has large uncertainty in its momentum, because $\Delta p = m \Delta v$. A large $\Delta p$ corresponds to a small uncertainty of its position, because $\Delta x \geq \frac{\hbar}{\Delta p}$.
The smaller uncertainty about the massive particle’s current position makes it easier to predict its future position.