Over the weekend, the Solar Roadways project on Indiegogo reached its target of $1 million. At the time of publishing, that figure is now north of $1.4 million, with five days left to go. The concept is verging on utopian: By replacing the USA's concrete and asphalt roads with solar panels, we could produce three times more electricity than we consume, instantly solving just about every energy problem we have (geopolitical stuff, reliance on fossil fuels, CO2 production, etc.) It's not hard to see why Solar Roadways has attracted so much attention and money: On paper, it really does sound like one of the greatest inventions ever. In reality, though, where, you know, real-world factors come into play, it will probably never make the jump from drawing board to large-scale deployment.