Question regarding the viability of bitcoin in the long term. From my understanding, the security of bitcoin comes from miners who verify the blockchain. What happens when there is so much halving that the reward for mining bitcoin is extremely low and the cost of verifying the blockchain for the miners exceeds the reward of their bitcoin?
Usually this happens when the price of the bitcoin is significantly high or there are unexpected jumps on the price. There is so much halving that transactions fees increases to the miners.
This is also one of the questions on what if the supply of bitcoin (21 million) is almost reached. Expect transaction fees to increase in the long-run. Also do note that miners will always have transaction fees because this is what makes bitcoin move from one block to another wallet.