Why Elon Musk isn’t a ‘chill, normal dude’

<p>Walter Isaacson’s new biography of Elon Musk paints a picture of a risk-taker who is changing our world, but can be critically short on empathy. Isaacson tells Matt Galloway what he learned about the mercurial billionaire — and why Musk might be a hero, but not one you should emulate.&nbsp;</p>