Tech Tent: Is Tesla really worth $500 billion?

Rory Cellan-Jones
Technology correspondent
@BBCRoryCJon Twitter

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It was the week when Elon Musk soared past Bill Gates to become the world's second richest person, as Tesla's value topped $500bn.

On Tech Tent, we ask just why investors think the electric car company is worth so much more than it was a year ago.

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