The Science of Cities: Growth, Scaling, and Kleiber’s Law
Explore the Science of Cities with Jackson and Nia. Learn how Luís Bettencourt and Geoffrey West apply Kleiber’s Law and sublinear scaling to urban growth.
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In biology, the bigger you are, the slower your internal clock; in cities, the bigger the system, the faster the individual parts have to move just to keep up with the social metabolism.
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I would like to about the study of Bettencourt, Lobo, Helbing, Kuhnert & West, “Growth, innovation, scaling, and the pace of life in cities” fra PNAS i 2007 and possible other studies confirming this or rejecting it.
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The Science of Cities is a research framework led by experts like Luís Bettencourt and Geoffrey West that views urban environments as biological entities. By applying principles of biological scaling, researchers investigate whether cities follow predictable rules of growth similar to living organisms. This approach suggests that as a city expands, it doesn't just get larger; it follows specific mathematical patterns that govern how energy and resources are used by the population.
Kleiber’s Law is a biological principle stating that larger organisms are more energy-efficient, a concept known as sublinear scaling. In the context of the Science of Cities, this means that as a city doubles in size, it does not require a double amount of infrastructure. Instead, it becomes more efficient, requiring fewer resources like gas stations per person because the increased density allows for shared utility and closer proximity.
The foundational research into the scaling and growth of cities was led by Luís Bettencourt and Geoffrey West starting around 2007. They moved beyond viewing cities as mere collections of buildings, instead analyzing them through the lens of biological scaling. Their work compares the metabolic rates of animals, such as mice and elephants, to the functional efficiency of major metropolitan areas like New York and San Francisco.
Sublinear scaling refers to the phenomenon where a system becomes more efficient as it grows in size. In biology, if you double a mammal's size, it only needs about 75% more food to survive. The Science of Cities applies this to urban growth, finding that infrastructure like roads and utilities scales sublinearly, meaning larger cities actually save on energy and resources per capita compared to smaller ones.
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Creato da alumni della Columbia University a San Francisco
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
