Can a solo bitcoin miner solve a block with an AntMiner S9 rig?
Could you elaborate on the feasibility of a solo Bitcoin miner utilizing an AntMiner S9 rig to successfully solve a block on the Bitcoin network? Given the current mining difficulty, hash rate requirements, and the competitive nature of Bitcoin mining, does the AntMiner S9 possess the necessary capabilities to find a valid block solution independently? Additionally, what factors should a solo miner consider when evaluating the profitability and sustainability of such an operation?