Robert Downey Jr says developing a “moral psychology” helped him through his darkest days. The 58-year-old actor referenced the years he spent in the grip of drug addiction in the late-1990s and early 2000s during his best supporting actor Oscar acceptance speech on 10 March – where he picked up the gong for his role in ‘Oppenheimer’. He has now told People about how he pulled himself out of addiction: “I think if you develop a moral psychology, things are a lot easier. “And I think it’s hard to explain away certain behaviours when there are ways to heal. “So I both have a lot of empathy for, …