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As trivial as the act of flipping a switch and lighting up a room may seem, we've had to come a long way to have safe and reliable light sources. It is estimated that the first lamps were invented 70,000 years ago, consisting of hollowed out stones or shells filled with an absorbent material soaked with animal fat that could be ignited. The Egyptians, on the other hand, used decorated ceramic vessels filled with oil, which provided a constant flame. Candles were popularized during the Middle Ages, made of tallow (animal fat) or beeswax, and could be burned in simple candlesticks and chandeliers. It was in the late 19th century that Thomas Edison and his team invented an incandescent light bulb that could be mass manufactured and was economically viable, soon becoming the dominant form of lighting for much of the 20th century. Although it was a revolutionary invention at the time, we are now aware that these lightbulbs are not very efficient, and they were eventually replaced by fluorescent and, more recently, LED bulbs. But if we have already advanced so much in such a short time, what can we expect for the future of lighting, and more specifically, how will our interiors be lit in a few years or decades?

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Saskia Sassen, the Robert S. Lynd Professor of Sociology at Columbia University, predicts in her co-authored book “The Quito Papers and the New Urban Agenda” that, in the future cities will become our crucial battlefield as we continue to fight against gentrification and growing degree of isolation in our communities. Sassen argues that, “Cities should be an inclusive space for both the affluent and the poor. Nevertheless, in reality our cities never achieved equality for all, because our cities were never designed that way. Still cities ought not to be a place that tolerates inequality or injustice”.

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