So, do not buy it.
I answered once to this thread and OP has deleted the thread. So here we are again:
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I edited the last part of your quote and replaced some words here and there, to give you something to think of. To make it fair, I bolded the things I've replaced. Imho Bitcoin is not so much different from Dollar as you'd like.
And this finally brings us to dollar and the following question. When investors transfer their utilizable resources like work, goods or services into dollar do they end up with another utilizable resource, i.e. a resource which can be utilized by some final user? Well, the obvious answer is: no, they do not. Instead, they end up only with printed paper/cotton or in other words, only with a number written down. And this number cannot be practically utilized like food is utilized by hungry people [...], but it can only be passed from account-to-account, from hand-to-hand, from member-to-member. And this is exactly how classical fraudulent schemes operate - they use something to lure people into the scheme, but the thing itself is non-utilizable, which is why it is just passed from one person to another. Once people realize that profit or utilizable resources can come from new investors only, the whole scheme collapses. And this is the ultimate fate of dollar. So, do not buy it.