The question is, how do you own 0.1 BTC in 2022 ?. If you look at the value of bitcoin and market place, it's hard to earn such an amount. The only way to make 0.1 BTC is an investment, but it means you're already rich if you're buying it. Why would you believe it when you already have enough money?. If you go back and invest like $8 to $10, it might become rich. But in today's generation, no one can earn such an amount, not even with mining.