Since Bitcoin isn't a currency and never can be, and seeing as it's a store of value (which matches up to its profile in terms of mining difficulty, scarcity, etc), the question if you believe Bitcoin is going to actually one day be worth $3 or $5 or $8 trillion: which countries own outsized holdings of Bitcoin? The US and China to name two. Very large quantities of Bitcoin were mined & purchased in the US in the first 3-4 years of Bitcoin. And China has represented about half of all mining the last few years as the difficulty has soared.