I need not a definition. Why don't you just study the brain and how it works and do some research on how it retains knowledge?
Yes, you can see it with your eyes. But does this give you knowledge of every aspect of its existence?
I meant it's existance, not the aspects of it.
For example, do you know what is happening with the atomic structures on the elevator cable, 15.5 meters from the elevator car, at this moment in time? Do you know how much radioactivity the tower is giving off?
Again, it's irrelevant. Just the existance, nothing else.
Where is the image of the Eiffel Tower stored in your brain? Is it upside down in your as it travels through your eyes?
Why don't you do research on the brain, again?
How much does it weigh? How many people committed suicide by jumping off it?
Just it's existance, not its properties.
You might have a little knowledge of it.
I meant that it essentially exists.
In my experience, every time we think we know a lot about something, invariably we do not.
Amount does not matter. It is just one thing: Does the eiffel tower exist?
That is all.
Name something that you DO "lack knowledge of"!
I do lack knowledge of how 36 ATP is produced by cellular respiration and the citric acid cycle.