why have to think about how much of energy needed by bitcoin, I care only when bitcoin is on higher price for selling and when bitcoin at lower price for buying, just thinking when have I buy and when have to sell of bitcoin.
Well you might not care about how much of the energy is used in mining Bitcoin but the miners do. The low the cost of mining, the maximum the profit they make by mining. The good market in addition adds more value to the portfolio.
For me, yes it does consume a lot of energy, it also means a lot of expenses to pay, but it doesn't really matter if we are earning way more than what we pay for our expenses, but I also do agree that if we are to have a lower expense to pay then that only mean that we are gonna have more and more income or profit to collect, and for me, that is what we call a good business or investment, but now that cryptocurrency value is on a down trend, I think it would be best for a much power saving method.
indeed at this time we only focus on the profits obtained from mining without thinking about the energy released. and I think as long as the miners are still a bit of the world's population, then the energy needs are not significant