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lupadim t1_iuk3zcf wrote

Reply to comment by sharplydressedman in How do white blood cells know in which direction there is a bacteria? by Enocli

I can't grasp how this overly complex system can come to exist without intelligent design

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WordsNumbersAndStats t1_iukavvb wrote

It is essentially trial and error repeated hundreds of millions of times over hundreds of millions of years.

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keloidoscope t1_iuk7rx5 wrote

if you think it's overly complex, how does that argue for intelligent design?

Natural selection only rewards economy and elegance when it confers a selective advantage, and inherited traits don't get magically optimised even when they start to get baroque or unwieldy in descendant species.

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