Why is it advantageous for organisms NOT to be consciously aware of all the activity in their nervous system? why is it advantageous for organisms NOT to be consciously aware of all the activity in their nervous system?

There is such an immensely high amount of activity going on in the nervous system every second of your living life, that being consciously aware of each and every piece of activity would be endlessly exhausting. Each action potential lasts only one millisecond long, and there are millions and millions sent each second. Would you want to keep track of all of that?