Since 2001 the silver and gold markets have gone up substantially as a reaction to the 20 year precious metals bear market from 1980 — 2000, massive increases in military spending,
weakening global economies that
REQUIRE Quantitative Easing to avoid deflation, the rise of competing
currencies that
weaken the dollar's trading status, excessive debts in Europe, Japan, the United Kingdom, and the United States, and so much more.
On the other hand, just like basic proof of stake, delegated systems
require a combination of algorithmic and social - driven security; the social component of proof of stake
currencies could
weaken their decentralization and mathematical soundness.