You should never cut into the open space between a truck and the curb if the driver has signaled to turn because

Large trucks cannot turn without first swinging wide in the opposite direction.

Explanation: if you overtake or cut into open space between the truck and the curb it is likely that you will crash or hit your car into the long tail of the truck and you may lose your life so waiting is worth saving your life.

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.

its tr3way you already know