How many decimal points do you want? ;-)
Just consider it shorthand for "Very very probably (to a statistical almost-certainty) the first bass saxophone quartet in the observable universe"
How do they know for a fact that they are the only bass saxophone quartet in the universe? This reminds me of Gagarin. At least if he had come down saying there is no bass saxophone quartet in the universe...
Just consider it shorthand for "Very very probably (to a statistical almost-certainty) the first bass saxophone quartet in the observable universe"