Qual é o retorno do investimento da mineração de Bitcoin na nuvem?

Could you please elaborate on the potential return on investment for cloud-based Bitcoin mining? What factors should investors consider when assessing the profitability of this venture, and how do they compare to traditional mining methods? Additionally, what risks are associated with cloud mining, and how can investors mitigate them? Lastly, are there any specific platforms or services that you would recommend for those interested in pursuing cloud-based Bitcoin mining?