Idiot savant as I am, I must have confused the time remaining before the universe will start collapsing, in 50 billion years.

Nevertheless, If current estimates put the age of the universe at up to 17 billion years, how do we do the 6 days math?

In addition, these estimates are based on The Hubble Constant, and its current value is under debate. Every change in the constant will change the calculated age of the universe anywhere between 9 to 17 billion years.

However, I am not a scientist and have neither intention nor enough knowledge to refute the beautiful works demonstrated by the authors.