Pronoid

Photo credit: Eileen Delhi / Foter.com / CC BY-NC

Photo credit: Eileen Delhi / Foter.com / CC BY-NC

Just because you’re paranoid, that doesn’t mean no one’s out to get you. That old saying is true for some people. Paranoia can be a useful trait for a spy, say. Or a despot. But for most people it’s just a problem. Paranoia, loosely defined as a psychological disorder involving delusions of persecution or grandeur, can cause intellectual impairment, hallucinations and just plain crotchetiness. At the extreme it can lead to homicidal tendencies or the need to rule the world. It causes suspicion of other people and can make for a very difficult social life. Paranoia is not a viable survival trait outside of a few very specific situations. It’s not a good evolutionary trait either. The human species wouldn’t be successful if everyone was paranoid. Still, it would be just as bad for us if we were completely free of suspicion. If the tiger didn’t get us the loan shark would. Continue reading

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Here Is Today

Photo credit: hereistoday.com

Photo credit: hereistoday.com

Here’s an interesting diversion sent to me by my brother, George Bowering. Caution: he’s been known to mess with his own Wikipedia site. It was sent to him by Spider Robinson, who says he got it from John Varley. Quoting Spider Robinson:

“Here’s the broadest possible perspective:

http://hereistoday.com/

Sent me today by John Varley. Just keep clicking “Okay,” at whatever rate suits you. The further I went, the slower I clicked.

Spider”

Perspective is right. I hope you enjoy it.

rjb

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Cave Art – More

Photo Credit - Greg Laden

Photo Credit – Greg Laden

Among the most popular posts on Green Comet is the Cave Art series, parts One, Two and Three. They make a nice summary of the state of the discipline for anyone with a casual interest. A good way to get a sense of what is out there in the way of cave paintings and rock art in general. On Scienceblogs I found a post by Greg Laden that goes into it in more depth, with emphasis on when and where our human ancestors began to produce it. From his post, How are art and human evolution related:

“Art is almost certainly important and has a place on (the) list of things to consider when wondering about the evolution of our species.” – Greg Laden

Laden does a good job of exploring the subject and makes useful suggestions for further thought and exploration. If you enjoyed the Cave Art series, I recommend furthering your education with his blog post.

rjb

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