“After 1 January 2020 scientific publications on the results from research funded by public grants provided by national and European research councils and funding bodies, must be published in com-pliant Open Access Journals or on compliant Open Access Platforms.”

We consider Plan S as a bold step that has the potential to be a game-changer in making European science open and setting an example globally on how publicly funded research is published, in particular its requirement that the copyright remains with the author and that licences adhere to the Berlin Declaration.