sciencebriefs
Topic

Complexity

Systems whose behaviour is not in any of their parts.

8
in science
11:05
average
89 min
in total
21
across the network
Complexity across the network →
All briefs8
11:16

Geoffrey West

Cities scale like organisms—but the 15% salary bump isn’t a law, it’s a rough correlation with no mechanism, margin of error, or boundary conditions.
10:19

Per Bak

Self-organized criticality is not a law of nature—it’s a sandbox with one working toy.
13:00

Catastrophe theory

René Thom classified every possible way a stable system can suddenly break into seven geometric templates. The mathematics is settled; its 1970s use to explain animal and human behaviour was not, and a public critique said so.
11:07

Mandelbrot set

Benoit Mandelbrot

Mandelbrot visualised a known mathematical object with unprecedented clarity — making topology legible through computation.

11:14

Riemann hypothesis

Bernhard Riemann

Riemann’s 1859 hypothesis is a precise, unproven claim about zeta zeros — central to prime distribution, yet untouched by proof for 165 years.