^ You did not probably fully understand what is the function of BTC and how affects the price to become volatile.
Because BTC has a fixed amount and the price varied on the demand and supply in the market cap. Once the demand will increase, it means the supply becomes less which in turn to BTC becomes expensive and the price was pegged into a dollar-based value. Nevertheless, it is impossible that you mean BTC will become stable in price, the price will always be fluctuated due to massive traders of altcoins in BTC pairs.