# 302.8 Lesson - halving

**Screen:** halving

**Headline:** The Halving

**Reward:** 5

**Text:** One final element that is important to understand, is that the block reward in the bitcoin network is reduced by half every four years, or every 210,000 blocks.

This event, known as the "halving", is programmed into the bitcoin software that all users run. When bitcoin was first launched, miners received 50 new bitcoins for each block they added to the blockchain. Currently, the block reward is 6.25 bitcoins, but it will be reduced to 3.125 bitcoins in 2024 when the next halving occurs.

These halvings will continue to take place until the year 2140, at which point the total number of bitcoins that will have been mined will be capped at 21 million. As of 2023, around 92% of all bitcoins (\~19.3 million) have already been mined.

Unlike fiat currencies, which can be inflationary, bitcoin is disinflationary in nature. This makes it more scarce than fiat and precious metals such as gold and silver, or anything else known in the universe.

\=================================================================

## QUIZ

**Question:** What happens to the block reward in the bitcoin network every four years?

**Answer:** It is reduced by half

**Feedback:** That's right! Satoshi determined the reduction of new bitcoin supply by half in the very first release of the Bitcoin software in 2009 and it is practically impossible to change

**Correct:** true

**Answer:** It is doubled

**Feedback:** Sorry, but the block reward is not doubled every four years. You must be confusing Bitcoin with the supplies of fiat currencies which are ever expanding at a faster rate. Try again

**Correct:** false

**Answer:** It is multiplied by a random number chosen by the bitcoin software

**Feedback:** Very creative, but wrong. The Bitcoin supply schedule is anything but random. Its predictability provides certainty for economic actors unlike anything in the history of mankind. Try again!

**Correct:** false

<figure><img src="/files/szhJPKxb5sJkfiXYqsRy" alt=""><figcaption></figcaption></figure>


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