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They can do it indirectly by changing the tax treatment.

• gruez 6y ago
  In what way? You already have to pay capital gains on it.
  • ben_w 6y ago
    Governments have as much control over tax codes as developers have over source code (literally — a tax code is just some written instructions, so it can be any computable function if you really want to do that). Governments can break entire sectors accidentally, doing so deliberately is trivial. For example, they could make a special cryptocurrency tax which is 100%. And/or a heavy tax on all currency exchanges “expect for the national currencies of the nations in Annex D”, and Annex D turns out to be a list of countries that they have a specific trade agreement with.
  • TuringNYC 6y ago
    They can have things like Transfer Taxes (https://en.wikipedia.org/wiki/Transfer_tax https://en.wikipedia.org/wiki/Transfer_tax) to reduce liquidity and hence desirability They can remove long-term capital gains on it and make it all short term treatment or partly short term treatment (I think that is how it works for futures IIRC.) They could create different categories of taxes (e.g., what we have for dividends), except with higher categories.