Fast food is getting slower, but the big companies don't seem too worried, and chances are, neither are you.
What does another 15 seconds matter to your day? It's an insignificant sum, nothing you might notice while waiting in a drive-thru for your lunch. But multiply that by 100 customers, and it balloons to a 25-minute wait on your fries. Multiply that by the 68 million people McDonald's serves each day, and lines are backed up by 32 years.