It is an inevitable truth that the world population is growing exponentially. Higher numbers can only lead to a higher demand for resources, food, and housing. By the year 2100, the 7.6 billion people currently living on earth will reach, according to the UN, a whopping 11.2 billion. This increase can only mean that the need to accommodate these people will become an urgent priority, innovating and shifting from the household system that is present nowadays. Soon enough this will be a global pressing issue. The size of apartments has been decreasing for the past half-century, making way to efficient and affordable tendencies, especially in the urban realm. In fact, this is also related to a global trend of a decline in fertility rates. On another hand, the average life expectancy is extended, mainly in developed countries, making older households less available, and the demand for new constructions to accommodate the fast-growing population higher. This can be directly highlighted through the recorded need for one or two-person residences, new housing requirements. In fact, on a rough average, we will need more than two billion new homes by the end of the 21st century, raising the question of availability of material for such a massive demand.
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