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Will it only be used for investing/speculation as long as its price is this unstable? Can you imagine a normal acting like bitcoin does? I guess pink papers/penny stocks do that but those are just legal pump and dumps that clog up your work fax with junk faxes that come through at 4:00AM making sure you will se it.
Only be used?
I just recently bought a headphones in my local e-shop with the use of Bitcoin, OP.
Although Bitcoin's being seen as more of an investment, while its aim is for almost an anonymous transaction, the part where it can't be controlled by 3rd parties and authorities will surely make it a lot viable for borderless transaction.