Hi Georgina,
Super to be in another contest with you (I missed the last one). I think you have been in all contests and used your biological and teaching background to great effect. And once again you have created a very good essay. Let me comment about your conclusions:
1. "The limbic system common to birds and mammals provides innate emotions that appear to be drivers of many goals." Yes, a very good point "emotions" are not mentioned in other essays.
2. "A goal is in the future imagined by the thinker. Yet the goal exists wholly Now in the only materially existent reality." Yes, from a third person scientific point of view. No, from a first person point of view. If asked how they feel, a person will generally give you an emotion (pain), not a materially existent reality (I feel like an arrow in my foot).
3. "Goals are impotent, tasks are interactions with material reality that can lead to goal achievement." Maybe, I find this to be a bit of word salad.
Please forgive my being nitpicky. This is a really good look at material reality, and establishing a link to emotions. In my own essay I tried to establish a link to emotion....didn't do as good a job as you did.
Do check out my essay.....it is relativity easy on the neurons:)
Thanks for being in the contest and for an excellent essay.
Don Limuti