recentpopularlog in

tsuomela : fitness   49

The evolution of lossy compression | Journal of The Royal Society Interface
"In complex environments, there are costs to both ignorance and perception. An organism needs to track fitness-relevant information about its world, but the more information it tracks, the more resources it must devote to perception. As a first step towards a general understanding of this trade-off, we use a tool from information theory, rate–distortion theory, to study large, unstructured environments with fixed, randomly drawn penalties for stimuli confusion (‘distortions’). We identify two distinct regimes for organisms in these environments: a high-fidelity regime where perceptual costs grow linearly with environmental complexity, and a low-fidelity regime where perceptual costs are, remarkably, independent of the number of environmental states. This suggests that in environments of rapidly increasing complexity, well-adapted organisms will find themselves able to make, just barely, the most subtle distinctions in their environment."
evolution  culture  fitness  perception  metaphor  computer-science 
january 2018 by tsuomela
Cool Tools: Stretching
I haven’t encountered any source on this subject as broad, accessible, and easily applied as Bob Anderson’s classic Stretching, a patient and friendly stand-in for my eight-grade P.E. teacher.
book  review  exercise  stretching  outdoor  fitness 
march 2010 by tsuomela

Copy this bookmark:





to read