I heard that the reward is halved every 4 years after each halving, so the reward miners will receive will always approach zero. To maintain the Bitcoin network, the price of Bitcoin must keep rising infinitely, which is impossible. Could there be a point where the value of the Bitcoin miners receive is almost zero, and the Bitcoin network collapses due to a lack of miners?
Is it possible that Bitcoin could increase its total supply in the future? But that would certainly cause Bitcoin’s price to drop significantly.
Could Bitcoin switch to PoS like Ethereum? That would also cause Bitcoin’s price to fall.
I don’t know if my understanding is correct
I don't think the supply of bitcoins can increase after 21 million bitcoins are mined. Because Bitcoin is a decentralized currency. As a result, Bitcoin cannot be reformulated in any way. Because, Bitcoin is not controlled by any specific center or individual. As a result, even after Bitcoin reaches 21 million, the number of Bitcoins will not increase and it will not be possible to mine more than 21 million.
But once the supply of Bitcoin runs out, the transaction fee will be the miners' reward. Since Bitcoin is decentralized, its price will not fall easily. And Bitcoin will never switch to PoS like Ethereum. Because Bitcoin has been running on PoW since its inception. If anything changes here, it will be on the miners' reward. As now miners are being rewarded with bitcoins. They will then be rewarded with transaction fees.