"Anyone has 1 thing or 2 things that one dosen't want to lose. Also, you have."

He said.

"We are the professionals that can search and find such a thing or things. A human being should, necessarily has something like a mid-point between desire and one's pride. It is simillar to the fact that any object has the center of gravity. We are able to seach and  find it. You will kow, soon. And, people notice that such a thing or things used to exist only when they lost."

Short silence

--------------Haruki Murakami's "Sheep"

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After loss, a trader finds it is a real loss. Before trading, the loss did not exist as a "real loss", but it existed as a probabillity of the loss.

And, the probabillity of a loss exists anytime, exsisted in the past, and will exist in the future, as long as a trader IS a trader.