The price instability problem can be explained:

1. There are some people who understand what Bitcoin is and what is the value of a unit (the system as a whole).
These are miners and business owners mostly.

2. There are too many people who DON'T know what Bitcoin is ... at all !

3. There are a bunch of speculators.


So the ones who know either don't sell or sell at very high price.

The ones who don't know want to buy cheap, because they see no value there yet.

Speculators take advantage of this market disagreement.


The picture will change when more people know what Bitcoin is ...

For me the reasonable market cap of Bitcoin system is about 1 trillion USD (at current USD value).

I intend to sell some and SPEND MORE of my coins gradually upon the climb.
And never stop mining !