Did Stephen Hawking fix his numerical mistake?

[mad mathematician]

I am reading Hawking's and Penrose's joint book called:" The Nature Of Space and Time".
And on page 98 it's written the following:"I have tried to show that the entropy of such a universe would be quarter of the area of the event horizon at the time of maximum expansion (fig. 5.12). However, at the moment I seem to be getting a factor of 3/16 rather than a 1/4."

Did he find where he had gone wrong in his calculations since the appearance of the book?

 

[PeterDonis]

Did he find where he had gone wrong in his calculations since the appearance of the book?

Without a reference to the actual scientific literature, we have no way of knowing.