Everything in life happens for a reason.
The traffic light turning red as you approach it steers you in a completely different direction to what you would have experienced should the light have stayed green.
You will see different people, different cars and different happenings...
Have you ever seen the film The Adjustment Bureau? It is one of my favorites. I adore the concept of how life could be mapped out for you yet with one simple tweak, everything in your life can change.