I think Kanji is the perfect imperfection.

I was looking at the character "美", designed in a logo with all four horizontal strokes of equal length. Why do we not write them with equal lengths?

I know there will be many explanations, but maybe one of them would be that, to make for strokes of equal length look beautiful, they must be perfectly equal; otherwise, the closer you get to them being equal, the more obvious how unequal they are.

And as long as they are not perfectly equal, the effort to make them equal and the subsequent failure stands out. Making them not equal from the beginning results in a more acceptable result.

So Kanji were not designed for perfect strokes. In fact, I have been finding of late that print characters which strokes are very well weighed, lack character. After trying to write kanji characters that have - character, I came to a conclusion. That beautiful kanji handwriting is not getting all the strokes well weighed, but getting away with getting them decidedly off balance. Which means that within the inequality of the strokes, there has to be a certain visual justification for its imbalance. This visual justification causes they eyes to see the imbalance, yet forces the mind to interpret it as a balance, resulting in the "character".

That being said, in order to understand what strokes can justify imbalance, and what just makes the imbalance worse, one needs to first know what the character would have looked like if it were perfectly weighed.

And since every character is different in its spatial composition of strokes, every single character needs to be learnt one by one.

And that, is where the art lies.