We all know zero percent.

“Knowledge” is defined (according to Google) as “facts, information, and skills acquired through experience or education; the theoretical or practical understanding of a subject.”

I am claiming that knowledge can be deceptive. In our whole life, we can think about what we know is right. But it’s not.

For example, many hundreds of years ago, almost everyone believed that the sun revolved around the earth. But that’s not true, so it comes under knowledge. Maybe. This is information, not a fact or a skill (though maybe it was a fact for people in the past). So it can be partially a fact for some of the past Homo sapiens or just a piece of information that spread from the mouth-to-ear chain.

So I believe I have established that knowledge can be deceptive. But that’s just not the only ambiguity here.

For most of us “Good Will Hunting” is our favourite movie. This movie offers a wealth of knowledge. I have watched this movie approximately 10 times, but who’s counting?

There is a scene in a pub.

Here Will emphasised our own thoughts as the knowledge. Knowledge is not merely about what you have crammed or memorised. It’s about your opinion on the matter.

So our opinion on the matter is our knowledge. I don’t remember who said it, but we can tell anyone that we have a firm knowledge on this matter if we can speak on that topic for at least an hour.

We so far came across “Knowledge can be deceptive.”. Your opinion on the matter reflects your level of knowledge.

But still, there is a thing: how much do you know that you know?

There are four dangerous, mind-boggling kinds of “knowing” I came across right now.

The four “hows”.

1. How much do you know that you know?
2. How much do you know that you don’t know?
3. To what extent are you unaware of what you already know?
4. How much do you not know that you don’t know?

It’s going to blast my head. If we do a simple proportion, I think the fourth one takes the 100% space. The other three options above receive a score of zero.

The first two come under knowledge. Because these two are you sure about, and you have an opinion on your “knowing”.

But I am still confused about the third case. But for now, let’s put it in the same bracket of knowledge.

However, I am 100% certain that the fourth case does not fall under the category of knowledge.

Hence, we know nothing, absolutely zero per cent of what the universe is offering.