 26 years. And so he says when he first learned about Hilleman and what all he'd accomplished... It was like trying to imagine another universe. But he was humble. As rough as he was and as crude as he could be and how as profane as he could be, he was a humble man. He never promoted himself. So he just always flew below the radar, remarkably enough, given his accomplishments. I honestly think he was the single most accomplished scientist in history.