To clarify, when I said stop mining, I meant stop offering new BTC as a mining reward and only give the nodes/validators transaction fees (which is how I assume it will work after 2140). Assuming that the system will stay secure as mining rewards are halved every 4 years and eliminated entirely after 2140, why can't the mining rewards be eliminated sooner?
I would like to think mining is pretty much at the core of how bitcoin works, when we sending our btc those coins have to be mined and verified to be authentic so if this process of mining is to be stopped, it's as good as hitting the off switch of btc !
Currently, BTC is adding ~328,500 new coins a year
This is not a fixed figure by the way, we have the halving
spending tremendous amounts of energy to do so
One of the qualities of money is scarcity and bitcoin being a form of money has to be difficult to find/mine and this difficulty can be seen by the energy consumption.
If you cut new supply, wouldn't the price go up faster?
Technically it would but miners wouldn't be motivated to run their rigs without the reward that comes from treasure hunting of new btc coins.
In terms of scarcity of money, wouldn't BTC be more scarce if no new BTC were being issued? And isn't it the code that determines how much new BTC is issued and not the actual amount of electricity consumed? Back in the early days, hardly any electricity was being used and miners were getting 50 BTC. Now, a ton of electricity is being used and they are getting 6.25, right? (I do get that high price equals more miners, which, per the code, equals harder puzzles to solve).
Assuming you are correct about miners not running their rigs without new BTC, what will happen to bitcoin after 2140 when there are only transaction fees? It seems to me that some miners will indeed shut their rigs down (or simply not replace them as they stop working). This will result in a downward adjustment to the difficulty and/or an increase in total fees until it reaches some sort of balance where it becomes profitable enough to run a node just on the transaction fees received. BUT, if bitcoin is relying on the amount of electricity used as its primary line of defense from a 51% attack, won't this attack be easier and more profitable to pull off if the number of miners drops and/or the difficulty adjustment goes down leading into and after 2140 assuming that the price goes up from here?