Once upon a time open access publishing was a naive dream, propagated by idealists and malcontents. Today OA is well on the way to becoming the norm for scholarly publishing, certainly in the biosciences and hopefully beyond.
Today's naive dream concerns open science, which concerns the entire scientific production chain and not only the publication phase. Make the data sets and lab notebooks open too. Crazy, right? Maybe not, as this recent OECD report attests. Progress marches on.