The recursion formula behind life itself?

Nanorooms
Oct 30, 2023
5 notes
5 Notes in this Video

L-Systems and Fractals in Biology

LSystems Fractals Lindenmayer RecursivePatterns
00:00

Aristid Lindenmayer developed L-systems in 1968 modeling plant growth through recursive rewriting rules. Mathematicians study fractal geometry—Benoit Mandelbrot coined “fractal” describing self-similar patterns. Computational botanists use L-systems generating realistic plant models. Developmental biologists recognize fractal organization in lungs, vasculature, nervous systems, and kidneys.

Algorithmic Complexity and Genomic Information

AlgorithmicComplexity InformationTheory GenomicCompression KolmogorovComplexity
02:00

Andrey Kolmogorov formalized algorithmic complexity (Kolmogorov complexity) measuring information content as shortest program generating output. Gregory Chaitin and Ray Solomonoff independently developed related concepts. Information theorists apply these ideas to biological information storage. Genomicists study how genomes compress developmental information into finite sequences.

Fractal Geometry for Surface Area Optimization

FractalGeometry SurfaceAreaOptimization BiologicalEngineering SpaceFillingCurves
02:46

Benoit Mandelbrot formalized fractal geometry showing self-similar patterns pervade nature. Geoffrey West applied scaling laws to biological networks revealing fractal optimization principles. Physiologists recognize fractal organization maximizing exchange surfaces—lungs, vasculature, intestines. Bioengineers exploit fractal designs creating efficient microfluidic devices and tissue scaffolds.

Branching Morphogenesis in Development

BranchingMorphogenesis Development FGFSignaling TrachealDevelopment
03:21

Markus Affolter and colleagues elucidated Drosophila tracheal branching mechanisms involving Breathless (FGF receptor) and Branchless (FGF ligand). Developmental biologists study branching in lungs, kidneys, mammary glands, and vasculature. Kathryn Anderson characterized mammalian lung branching. Systems biologists model branching dynamics through reaction-diffusion equations and agent-based simulations.

Modularity in Developmental Programs

DevelopmentalModularity GeneticModules Evolvability RegulatoryCircuits
04:30

Günter Wagner formalized developmental modularity concepts explaining evolvability. Sean Carroll demonstrated regulatory modularity in evo-devo. Developmental biologists identify reusable genetic circuits deployed in multiple contexts. Systems biologists model modular network architectures enabling robust yet flexible development.