Another milestone. The same type of people saying "it's a ponzi/tulips/dead" haven't change since well under a dollar in 2010 and dollar parity in 2011. Etc.
Tulip bulb supply is unlimited, inflationary but Bitcoin supply is inflationary but with less and less inflation rate with time. Since 2009, there are 19.79M bitcoins were mined from Bitcoin blocks that account for 94.24% of Bitcoin total supply.
There are not too many bitcoins from Bitcoin block subsidy until 2140.
https://en.bitcoin.it/wiki/Controlled_supply