This is my weekly newsletter for members of Reaction. Don’t miss our Weekend section, where the great Adam Boulton has written on the possibilities of hydrogen. Adam announced this week he’s leaving Sky News, and in his statement he kindly mentioned his writing for Reaction. We love Adam being part of the team here. There’s also opera, Allan Massie expertly analysing a big rugby weekend, Jenny Hjul on Meghan Markle, food, art, our What to Watch guide, books and more.