Considering the supply vs global population = 0.003BTC per person to go around.
Then other factors like not all 21 million will be in circulation due to lost wallets/deceased hodlers who never informed anyone where their seed is, and also an increasing global population and future generations who all want in.
Do you think 0.1BTC will be like owning a mansion?
I think nothing will be enough to guarantee it is a villa or a villa + a car. Lol, at least 0.1 BTC is still a big reason to hope and more importantly you can hold and fight fiat to keep your freehold stronghold. Maybe the last bitcoin will be mined in 2040 or so. I think bitcoin will show a price at 1M$ to confirm the future of crypto finance. But as all will be the time and when it will