Liam Denning, Columnist

Tesla's Master Plan: Keep Spending

Ever-growing ambitions are doing the trick of keeping investors in line.
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I remember when tens of billions of dollars used to be real money. But that was before Tesla started building its Gigafactory.

Giving reporters a tour of Tesla's partly built battery plant in Nevada this week, co-founder and CEO Elon Musk mused that achieving the company's multiplying ambitions -- of which the Gigafactory is a critical element -- could end up costing this large, amorphous sum.