Bitcoin will continue to be mined by miners, but the mining returns they get will always halve every 4 years or after 210k blocks appear. In general, 210k blocks will appear over 3 years and 10 months. but people will easily call 4 years for halving. From Coinmarketcap we can find out the max supply is 21 million Bitcoin, while the circulating supply is 19,564k BTC so 93% of Bitcoin has been mined and only less than 7% remains unmined. However, it is estimated that Bitcoin will be completely mined in 2140. In your opinion, what will happen after Bitcoin is completely mined?