One way out of the impasse is to come off the highway.
Perhaps there is a small road to the side which looks like it is going
nowhere
but in fact we go round the obstacle and come out the other side.
This is lateral thinking
We were steek on the Vertical Thinking Highway. Maybe there is a little side
road ovv to the left and we can maybe go round the obstacle. This is the
propose of Lateral Thinking.