What we could do with cleaner energy is more than you can imagine. | Lucy Jones for Vox; Getty Images What could you do with energy that’s cheap, clean, and near unlimited? You could live in a home built to your precise needs that stays cozy and cool all year long. You could swim in a heated pool filled with ultra-pure recycled water. You could grill a steak grown in a factory, from cell on up, marbled, textured, and flavored to perfection. You could visit a nature preserve on land reclaimed from mines and farms, teeming with once-endangered animal life. You could get whisked comforta...

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