Earlier quoted context omitted.
Are you talking paper gains or actual cashed out real money gains? Bitcoin is virtual currency based on massive electricity consumption. Due to the ever increasing difficulty of mining, it is effectively a Ponzi Scheme.
Paper gains. Sure its a pyramid of assumptions that could topple at any moment. But if it continues the way it has been, then it can accomplish the goal.
"Surely real estate prices will keep going up!"
The worry is that when the crash comes, no one will be willing to buy. Or even if you find buyers, what if everyone starts withdrawing their money from the exchange, and the exchange doesn't actually have that liquidity...