Here is the picture he mentioned (And yes, I wish it wasn't a dancer...)

How can someone see this rotating counter-clockwise?  Those would do need their drivers permit revoked immediately.

The descriptions makes me a lefty (by far) but I see it turning clockwise.

That's scary. Wonder whats peculiar about that figure to create this phenomena.

Leaves me to wonder if I'm think of myself as a lefty but am not.  But that sounds unlikely

Added : And re-reading the descriptions with a different frame of mind, I do find myself in the right also.  Bias, how pervasive it may be.

Clockwise for me.

No matter how hard I try, I cannot see the lady rotate anti-clockwise. Yet I've read that most people do!

I've tried switching into "magic eye" mode. No luck.

I got counter clockwise and clockwise. lol I'm more right brained, but I've trained the left pretty well too. It had to work twice as hard, because I think the right brain got hungry on those public school lunches and devoured a good part of it's partner. What's a brain to do?

Very interesting. She was spinning clockwise for me initially.

I found a larger image on another website and then tried to see the image as flat. That's when she decided to spin the other direction.

Now the crazy dancer can't decide which way to go!  

My suggestion is for everyone to study formal logic before they begin to espouse ideas that are combative on the board. Everything else is good and useful, but there is so much debate on the board I recommend everyone studies formal logic. There are some great books on Dialectical Logic (minor logic) and Epistemology/Criteriology (major logic) out there.

I don't agree it's a requirement to argue, but, it's a valuable investment in time.

Whether it's here, or on other boards, confrontations are inevitable.  I've been studying it formally for the past few months and enjoy it.

There are practical skills, like learning to spot fallacies, argument mapping, and the basics of deductive and inductive logic are fun, game like skills that not only help build your own responses more effectively, but often, understand better then your opponent his ideas.  This approach also helps (yes, only helps) in removing the emotional factor.

It's an art with great depth, and the better you understand it, the more interesting it gets.  I've only begun scratching the surface.

Added: The harder skill is then to integrate this knowledge into your text, without sounding  pompous, robot like, or insensitive.  I have not tackled that part yet.