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Kelluu began, as startups often do, in an old shed.

The small Finnish company makes airships — think van-sized blimps — originally designed to watch over power lines with cameras.

It was supposed to be the year that America's real estate market came back to life — until it wasn't.

From Davos to Washington to America's high school classrooms, people are questioning the foundations of our economic system — and we at Business Insider are tracking what the fight over the future of capitalism means for your work, your wealth, and your world.