Cryptocurrencies have been christened as the revolutionary financial instruments as ways of making payments and investing. On the investment part, they appear to offer far more sweeter returns than any other known way of growing wealth. The value of bitcoin, for instance, has grown exponentially in this year alone by a percentage of more than 250. So I was wondering, do we really still need savings accounts or any such ways of growing our money? Or should we shift our focus entirely to cryptos which have shown a propensity of giving better returns on the shortest time?