SO ENDS this first of two weekends on the Cambrian explosion of animal body plan diversity, and its subsequent mysterious abatement. To call the abatement locked or canalized is simply to use a fancy word that is a descriptor of events, not an explanation. Did these creatures saturate geometric constraints with their genetic toolkit? There are not infinite geometries available to form and structure. For example, there are a finite number of crystal options in the natural world. Or was there another constraint operating? View in LinkedIn
LOSS OF PLASTICITY. "Early animals may have been less restrained in their development as they were not yet “canalized” or “locked”. In other words, as the initial blueprints of the first body plans were being laid down, it became increasingly less likely that mutations resulted in major body plan alterations without catastrophic consequences for viability." https://lnkd.in/dTKCkih View in LinkedIn
"COINED by British evolutionary biologist Richard Dawkins in The Selfish Gene (1976) as a concept for discussion of evolutionary principles in explaining the spread of ideas and cultural phenomena. Examples of memes given in the book included melodies, catchphrases, fashion, and the technology of building arches." https://lnkd.in/d6Cxzi3 View in LinkedIn
CULTURAL TRAITS. "Some treatments of cultural evolution (e.g., sociobiology and evolutionary psychology) consider how cultural traits evolve due to their effect on biological fitness. But one can also consider how cultural traits evolve in their own right, as Dawkins did when he coined the word “meme"." https://lnkd.in/dsMZPii View in LinkedIn
CO-EVOLUTION. "All this suggests that machines might play an unprecedented role in the next major evolutionary transition, and the challenge here is to predict and explain this role." https://lnkd.in/dsMZPii View in LinkedIn
AUTONOMOUS MACHINES. "These machines will be as much a part of the natural world as features in the landscape or existing forms of life, and their evolution will affect the course of existing forms of life. Think of how machines are currently ramifying the nature and rate of human communication and interconnectedness." https://lnkd.in/dsMZPii View in LinkedIn
ENORMOUS TRANSITION. "Many agree it is only a matter of time before artificial life creates machines that are alive, are intelligent, reproduce their own kind, have their own purposes, set their own goals, and evolve autonomously." https://lnkd.in/dsMZPii View in LinkedIn