پس مصرف کل انرژی مغز ساده است، تابع خطی از تعداد سلول های عصبی اش. و نتیجه این که مغز انسان همون اندازه انرژی که انتظار دارید مصرف میکنه. 
So the total energetic cost of a brain is a simple, linear function of its number of neurons, and it turns out that the human brain costs just as much energy as you would expect. 