Quanto ganha um minerador de Bitcoin?

As a crypto enthusiast, I'm curious to understand the intricacies of Bitcoin mining. Could you elaborate on the question, "Quanto ganha um minerador de Bitcoin?" In simpler terms, I'd like to know: How much does a Bitcoin miner earn? I'm interested in understanding the factors that determine the profitability of Bitcoin mining, such as the current Bitcoin price, mining difficulty, hardware costs, electricity expenses, and any other relevant variables. Furthermore, I'd appreciate insights into the long-term sustainability of Bitcoin mining and whether it's still a viable option for individuals or mining pools to generate a decent income.