Why is it so important to have a clear vision of your goal? There's no magic here; it's pretty simple. Imagine you are a hunter and see a deer far away. It's blurry, the outlines are unclear, there are no details, no smell, and no sound from the deer. This means the deer is very far away, and it will take a lot of effort to catch up with it. The closer the deer is to you, the more precise you can distinguish the details, the sounds that appear, and, if it's very close, the smells, too. Sensory perception encodes the distance to the goal. Our dopamine system allocates energy to achieve a goal by carefully weighing the energy expenditure and the likelihood of success. If the energy cost is high, but the probability of achieving the goal is low, or the goal isn't worth it, then the dopamine "credit" isn't issued, and you lose interest in it. This complex calculation mechanism includes the desirability and uniqueness of the goal, the probability of s...
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