5 ms·
Random doesn’t mean all outcomes are equally likely, a coin rarely ends up on its edge. Thus evolution is often random between local optima. People’s organs d
by Retric 3y ago
Random doesn’t mean all outcomes are equally likely, a coin rarely ends up on its edge.
Thus evolution is often random between local optima. People’s organs don’t represent perfect left/right symmetry but there’s no particular benefit for which of the two options were chosen overall. Ie swap just which lung is smaller and you get lots of problems, but swap everything and it all works.
- graemep 3y agoLocal optima are also the reason you get things like the recurrent laryngeal nerve, which runs from the brain to the larynx going under the heart. bad enough in a human, a huge deviation in a Giraffe or a Brontosaurus.