Hiya I think your post circles around some important distinctions which are yet to be specified in any satisfactory way.  Keep exploring this stuff ... Also, part of your post reminded me of an experience I had once upon a time that still fascinates me today.  It may be of some relevance here ... or maybe not. It's only been quite recently that we in Australia have been exposed to the soft drink "Dr Pepper", which has a very distinctive taste compared to other products on the market.  So one day, I'm walking from one place to another in the summer heat, and I decide to pop into the closest corner store and buy myself something cold to drink.  I found this stuff called Dr Pepper that I had never heard of before, so I decided to try it.  At first, the taste was very unfamiliar and I couldn't decide whether I liked or disliked it.  The taste wasn't quite pleasant and it wasn't quite unpleasant - it was just strange. When I had arrived at my destination, a friend of mine asked about this new drink.  I told her that I wasn't sure about it, and I couldn't quite describe the taste, so I suggested that she taste it herself.  My friend had a similar response to mine - not sure if I like this or not, and I can't really describe this strange taste. At last, a distinction came to me and I could describe what I was tasting.  It occurred to me that Dr Pepper tasted like cola, with an aftertaste of marzipan.  From that instant, I discovered that I really liked the taste of Dr Pepper - it was fantastic!  I immediately suggested this distinction to my friend, and she tried a little more and decided that she agreed with the distinction.  From that instant, her face screwed up and she uttered an expression of displeasure at the discovery that she really disliked the taste of Dr Pepper. This experience fascinates me to this day.  When I'm drinking Dr Pepper, I just drink it - I don't think about it.  But my experience now of Dr Pepper (pleasing taste) is different from that first time, and that experience changed from the moment that I became able to map my FA experience into f2 distinctions. I'm sure there are many more examples of this kind of process.  Keep exploring ... Cheers, James