we have done a waste
burn listric energy to get anything
You can't call it as a wastage. There is a chance that in the near future, Bitcoins will be replaced by another crypto-currency. Similar incidents happen with fiat currency also. For example, in April 2009, Zimbabwe decided to abandon its currency (Zimbabwean dollar) and made US Dollar the official currency. Another example is the Ecuadorian sucre, which was abandoned in 2000.
so wich better ? SELL BITCOIN TO BUY GOLD ? OR SELL GOLD TO BUY BITCOIN ?
iam also buy some Gram gold to hold and save it in bank