Three Per Ten Thousand Law

George Soros once introduced a Three Per Ten Thousand Law:

Among 10,000 futures traders:
1,000 can correctly predict the market trend,
which means about one-tenth of the people can see the correct trend;
but among these 1,000 who predict correctly,
only 100 actually make correct trades,
meaning only 1% overall both predict correctly and execute correctly;

Of these 100 who predict and trade correctly,
how many ultimately make money?
Only 3, which means only three in ten thousand overall both predict and trade correctly and end up profiting.

To summarize:
Out of 10,000 people, 1,000 can predict the correct trend,
and among those 1,000, only 100 make correct trades,
but among these 100 who trade correctly, only 3 ultimately make money!
In other words, the final profit probability is only a mere three in ten thousand!