# Bitcoin's money supply

Andreas Antonopoulos talks about the monetary policy of Bitcoin and what the supply of bitcoins will look like over the upcoming century.

| Creator              | Time | URL                                                        |
| -------------------- | ---- | ---------------------------------------------------------- |
| Andreas Antonopoulos | 6min | [Full source](https://www.youtube.com/watch?v=FYo5E7zT-vM) |

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**Takeaway** There will only ever be just short of 21 million bitcoin. Currently there are already 19.1 million bitcoin in circulation. New bitcoins come into circulation at a predefined and transparent rate by rewarding miners who generate valid proof-of-works. That block reward is halved every 4 years or so. After the year 2141, no new bitcoins will be issued and miners will be rewarded solely with transaction fees.
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