Still not happy with the 'built up buying pressure from earlier sell-offs plus confidence from phase of relative stability plus naked eye evidence of buying support for mid-400 prices' explanation, huh?
You mean an 'it is raining because drops of water are falling from the sky' kind of explanation?
Almost, prof. More like 'market price being a function of human cognitive process output, so it's futile to look for more "objective" causes'.
Hm, ok, so why can't human cognitive process outputs be worth 10$ apiece tomorrow?
Seriously, you are right in that the current price is not supported by its utility but only by the traders' feelings about what the price will do in the near future. (Whether it succeeds or fails, bitcoin will be a valuable experiment for financial studies, as an instrument whose market price evolved for years on pure speculation, with no "contamination" by fundamentals.)
Yet, most of the major price moves since last year have clear external causes, such as the seizure of Silk Road, the PBoC decrees and their workarounds, the "bug in bitcoin" announcement, etc..
Granted, most of these events were unpredictable, and acted through changing peoples' outlooks, so that the magnitude of the change would have been impossible to estimate. But one can imagine dozens of events like those that could happen an d bring the price down. Just as some predict a rally if the SEC approves COIN.
As for the May/20--Jun/05 rally, in particular: for most of the time since then, the price has either wandered about or drifted down. The rise (and the support after it) came in a few sudden, concentrated buying spurts. So that rally cannot be explained as a general diffuse change of traders' outlook; it seems more likely that there was a series of discrete external events causing each spurt,
Thus, I would rather believe that is was a few big traders getting some inside information, one at a time. But I can't figure out what the information could be, nor whether it was in China or in the "West".
I could try to summarize the narrative that to my mind explains best the May 20 breakout and subsequent consolidation, but it's mostly technical, so I already know you won't buy it. Which is okay...
Well, actually more 'stubborn' than 'okay', now that I think of it. Your desire to find the "fundamental" cause of this particular price change seems about as silly to me as if some trader/analyist would look at the October 2 2013 crash and would start explaining it in terms of waning buying pressure and market indecision etc., until someone points out to him that it was an entirely news driven event (Silk Road).
In other words: there are times when it makes sense to look at the news/fundamentals mainly. You'd look silly if you would try to shoehorn an event like the Oct 2 crash into a technical explanation (although the following rise can be seen through that lense). Conversely, trying to "fundamentalize" the May 20 breakout seems silly to me. There was no strong fundamental reason in the vicinity of that date that is likely to have caused it. In fact, that you keep coming back to this date/price event shows how unsatisfactory any fundamental explanations of it so far have been.
The way to look at this one is technical, but since you believe technical explanations are circular or uninformative, they're not available to you, so I predict you will come continue searching for an explanation in the future as well