There is a fair amount of evidence on that, Steve, though obviously not as much as you would like. For example, he wrote and published a draft of a document on relationships that was welcomed by the various gay communities as the most positive thing they had heard from the Church ever, but then it got blocked and watered down by the cardinals - a problem Corbyn will hit, I am sure. He speaks out on the side of tolerance quite often, while the church has a long history of intolerance. Again, I am sure he does not go anything like as far as you would like, but, as you say 'any evolution is a good thing'.