It is a good idea to invest in Bitcoin and hold it for long term, as it has yielded high returns, as evidenced by its historical performance. However, for those who are interested to generate passive income through mining Bitcoin, it may be a viable option only if certain conditions are met such as living in a region with low electricity costs or having a personal solar system to power the mining setup. Additionally, it's important to consider that mining requires a significant upfront investment in equipment and requires a consistently cool environment to operate efficiently, which may not be feasible in some locations.