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- Walter Isaacson commended Elon Musk's engineering abilities, but suggested he lacks empathy.
- Isaacson made the comments on CNBC's Squawk Box, discussing his upcoming biography of Musk.
- Musk's manner has drawn more scrutiny amid mass layoffs at Twitter and his anti-trans posts.
Walter Isaacson, whose upcoming biography about Elon Musk is expected in September, said one of his takeaways from three years of observing the voluble executive is that he may lack empathy.