Each person own 1 Bitcoin and hold on to it for 20+ years.
Bitcoin is the best investment of all time. Owning Bitcoin is better than owning a house.
Sounds pretty long time frame to me especially considering the fact that the age of btc is already only 7 years - and even that has felt like forever.
However, holding 1-5 btc should not be impossible, and even larger amounts as long as you are having income from other sources and are not forced to sell at current levels.
Its not just that, but the other markets like gold and silver has to be over flowing and being unable to cater to peoples needs.
Then people start looking for other options like bitcoin, but if the market cap for gold is close to 5 trillion then bitcoin remains a small billion category.