Given you use dollars, I'll use US economics as the benchmark. Your estimate only applies to the 1%, according to https://www.investopedia.com/personal-finance/how-much-incom..., according to [0], the top 1% earners has a minimal gross income of $682,577 per year; deduct taxes, cost of living and other expenses, there's no way they'd save up $1.5 million over 2-3 years.

Yeah you're very much out of touch, what kind of income are you earning or is this more wishful thinking?

[0] https://www.investopedia.com/personal-finance/how-much-incom...