When using the two-second rule, if you reach the mark before you finish counting "one thousand two", you __________.

The two-second rule is a guideline that helps drivers maintain a safe following distance from the vehicle ahead. When you count "one thousand one, one thousand two" after the vehicle in front of you passes a specific point (like a sign or a tree), you want to complete the count before you reach that same point. If you reach the mark before finishing the count, it indicates that you are following too closely to the vehicle ahead.

Following too closely, often referred to as tailgating, can be dangerous because it reduces your reaction time in case the vehicle in front of you needs to stop suddenly. Adequate following distance allows for enough time to react to any unexpected situations on the road, greatly enhancing safety for both you and other drivers. In this scenario, maintaining a safe following distance is essential, and the two-second rule serves as a useful metric to gauge whether you’re too close.