1. Bitcoin adoption
2. Mining machine development
So if these two factors goes well, I do not think miner will face any difficulty in the future(except if the government push their ideology that Bitcoin miners greatly contribute to greenhouse effect), this will ensure the survivability of Bitcoin mining in the future.
Happy Christmas ceremony.
You are absolutely right. However, one thing that seems very complicated to me is that if the price of Bitcoin does not increase in subsequent halvings and electricity bills, machinery system, and maintenance costs increase over time, mining costs will automatically increase. In this case the mining system will face losses. But what I understand is that Bitcoin goes through a cyclical system and after a certain period of time the market increases and during that time Bitcoin price decrease does not affect the mining system.