A decade ago, mainstream experts weren’t predicting that the cost of solar power would fall as steeply as it has by 2020—it’s now down more than 80% so far. Tony Seba, a Silicon Valley entrepreneur and investor, was one of the few to get the forecast right. Seba and investor James Arbib, who run a think tank called RethinkX, now say that similar changes could happen in other parts of the economy, transforming the cost of everyday life so significantly that it could pull people out of poverty.
