Other believers maintain that the book has prophetically anticipated scientific advances. They believe more of its science — if not all of it — will be proven correct in the future. Gardner evaluated many of these claims as of 1995 and argued that they were fairly unconvincing. Because the book is said to have been written by the revelators by 1935 while then was not being published until 1955, discoveries from science during the two intervening decades are often declared to be prophetic by believers, while skeptics point out that edits could have been made to the book up to its 1955 publication. For instance, the catalytic role that carbon plays in the sun's nuclear reactions is described in the book, and Hans Bethe's announcement of the discovery was made in 1938.