Suppose there is only the quoted statement, but no reference to what is the nature of the contradiction. In that case what kind of contradiction does that statement refer to?You contradict yourself.
Since we are in the beginning of the whole evolutionary process, such a question can mess our head the "huh?" way. But that question doesn't stop the older guys who roam the Milky Way from answering . . .
Give a large group of college graduates a test that includes this question: Is the statement
exact = approximate
false or true?
The result shows that the vast majority opted for the false answer.
Then gather another large group of college graduates and give them a test that includes this question: Is the statement
1/3 = 0.333...
true or false?
According to the long division, the statement is true and that showed: all respondents agreed on the option that the statement was true.
But since 1/3 is a rational number written in exact format with 0.333... being the approximate equivalent, then exact = approximate, and both groups of the college graduates therefore significantly contradicted each other.
But how is this example particular to the statement "You contradict yourself"?
Well, "You contradict yourself" is 1 sentence comprising 3 words. It means that the following statement doesn't appear to be random at all:
You contradict yourself = 1/3
where the number 1/3 is the clue to the nature of a contradiction that Homo sapiens was asked to come up with.
By whom?
Let's answer by another question: 1 triangle has 3 vertex points. How are those three vertex points defined?
Let me see the triangle, and I tell you. Duh.
So what kind of triangle is it?
1) Triangle GOD
2) Triangle UFO
3) Triangle MAN
I think we must shoot it down and look inside.