How long will $10 million last?

Could you possibly elaborate on the question, "How long will $10 million last?"? It seems to be a rather ambiguous inquiry, as the duration of the funds' sustainability would greatly depend on various factors. For instance, are we discussing the lifespan of $10 million in terms of daily expenses, investment returns, or inflation adjustments? Additionally, what kind of lifestyle are we considering? A lavish one with extravagant expenses or a more modest one with frugal spending? Furthermore, are there any foreseeable large expenses, such as a property purchase or medical bills, that could significantly affect the longevity of the funds? Could you provide more clarity on these points so that I can better address your query?