Traffic jams exist because humans drive cars, and humans are not designed to process data at 120 kilometers per hour.<p>This is a major repost but still misses the main problem. When you look at a car in front of you, you perceive it as a stationary wall, not a moving wall. When you slow down, you&#x27;re trying to avoid hitting where the car in front of you <i>is when you press on the brake pedal.</i> You&#x27;re not smart enough to realize that you should be slowing down to avoid hitting where the <i>car will be</i> when that car stops.<p>You do this, and you should not be driving cars. Leaving space in front of you is an inefficient solution to this problem, now you&#x27;re overcompensating even more for the problem.<p>You can try watching one car ahead of the one in front of you to predict when the car in front of you will slow down and need to stop. Your passengers will freak out, constantly thinking you&#x27;re going to hit the car directly in front of you, because they perceive the car in front of you as a stationary wall. In reality, you&#x27;re driving more efficiently.<p>The day when us unevolved meat sacks stop controlling two ton metal bullets can&#x27;t come soon enough.