Bitcoin is predicted to be used as a currency by 2030, according to Ki Young Ju, the founder of Crypto Quant.Ju believes that as Bitcoin's mining difficulty increases and institutional interest grows, its volatility will decrease.He suggests that payment companies like Stripe will make it easier to use crypto for payments, starting with stablecoins.However, the transition to Bitcoin as a currency may face challenges, including the need for scalability and changing the narrative around BTC.