There is a very wide spread between the minimal soundbite and maximal philosophical discourse. Semiotically, we all mostly have to deal with the bottom 80%.

There can never be a fixed set of meanings in most of the word language we employ. It depends on subject, context, sender and receiver - and time. In language, the fixing of meaning is a death sentence, because language is constantly changing - not only the words and phrases themselves which usually tend to foreshorten (eg Tottenham Hotspur Football Club becomes Spurs), but also meanings are in constant flux.

Language is, in that sense, a self-organizing system. Each unit is constantly in a state of adjustment with its neighbours. A hammer can even miraculously turn into a saw.

But anyway - what was PNing invented for, if not for catching butterlies?

You can't be me, I'm taken