But could you then go on and describe this curve with one term?
It's not one term. And yes you can do the exact same thing you did on every chart. Just plot Brownian motion on a chart and do it, you'll see.
No you cant. If price drops below the red line it wouldnt be valid anymore. It would rather show an average direction, which is what you can REALLY do with every chart.
It would just be upside down. And I can choose a smaller interval to make it fit any way I want too.
Mobodick: It has more than one term because it doesn't begin at zero|zero.
Hmm, I guess you are right. Too bad.
I still think may decreasing growth of value influx-theory has some substance, but it is probably applicable to a much larger time frame anyway. We are not even at 0.0001% of the potential value that may ever be converted into bitcoin. I therefore estimate the function of that particular growth to be very much at its beginning still.
The memory of traders seems to be also valid IMO, as evidence I would like to provide this graph here (switch to any time frame if you like):
The neighbouring areas of high volume seem to move up, never down (except for stark movements). From that I draw the conclusion that traders on average refrain from selling before their base price is not met. This way resistances and supports can be perfectly explained also.