Giant ponzis do not run for more than 10 years. At $600,000,000,000 invested in Bitcoin the money supply has dried up. Bitcoin has crashed from $20,000 to $12,000
and high profile people calling Bitcoin a giant scam there is ever increasing risk of international police raiding Bitcoin mines
Ponzi scheme did not make the Bitcoin to pump as high as $20,000 but the real demand and the big whales did the pumping and also Bitcoin is not a scam but the people who use Bitcoin platform to steal the money of the people are the scam but still i don't believe that the Bitcoin price will drop as low as $400 anymore because even due the real demand is reducing but if many of us are keep on holding on then your argument is very impossible to happen.