The Simplest Bitcoin Book Ever Written
Bitcoin is scarce.
It has a hard cap of 21,000,000.
There will never be more.
Code is law here.*
* While it is 'technically' possible to change the code, Satoshi's genius prevents that, since increasing (inflating) the supply would only serve to decrease the value of all bitcoin in circulation. This therefore incentivizes everyone to implicitly agree to maintain the 21,000,000 hard cap supply.
Check out timechaincalendar.com by @TC to check the current block height, the available supply, and numerous other metrics with regard to the bitcoin timechain.