The problem with BTC is not the accounting aspect. Some parts of the financial system (like option traders) have learned to do accounting in highly volatile situations.
The problem is that BTC gained it's intangible value differently from a normal fiat currency and it can loose it again. See https://bitcoin.isnot.money
The problem is that BTC gained it's intangible value differently from a normal fiat currency and it can loose it again. See https://bitcoin.isnot.money