The message worn by Matthias Willenbacher, co-founder of German renewables developer Juwi, is the title of his new book, the product of an extremely short conversation he had with German chancellor Angela Merkel earlier this year.

On a 13-hour flight back from Chile, where he had travelled with Merkel as part of a German trade delegation, he approached her and asked if she could discuss the country’s energy transition for a few minutes.