Yes but you do not pay taxes in dollars in china. But china has north of 1 trillion dollars reserves. It's enough that SOMEONE BIG ENOUGH accepts bitcoin for whatever use we know the btc hoarders community is going to double every 3 months becoming as large and as difficult to move than US governement, why all this people should renounce to the unique safety and rareness of this asset? Only a governement war against bitcoin could succed, and also in this case some value will be left. What can we say about this value left one hundred years later? coludn't hoarding restart? That's what's happening since 2009, why should it change? every regulation, taxes, etc. is just an approval of the existence of btc, and EVERY RARE ASSET WITH SOME STEADY DEMAND IS A STORE OF VALUE. Why? because at some time ther will be hoarding of that asset and self renforcing demand. Look at the chart of gold... Copper is beautyful and useful, but not rare so the use value is not important   In every case btc we have really a lot of time before any real bubble, we have to reach at least 500 billions market cap to end the ponzi scheme base. So, have a good ride!