Aye, and 2 seconds is the bare minimum. A company I have worked for wanted 4 seconds between you and the car in front. That always felt a little much, but it definitely helped prevent wrecks.

I was taught to look when the car in front drives past a landmark like a lamppost, then say to myself "Only a fool breaks the two second rule"

If you pass the lamppost before you finish saying it, you're too close

3 seconds is the guideline I've been taught here in Sweden, but yeah. Riding too close is crazy dangerous and I don't understand why people keep doing it.

2 isn't much, over here they recommend 3 at highway speeds