Every four years, something Satoshi built into Bitcoin's code cuts the reward that $BTC miners receive for processing transactions exactly in half. This event is called the halving, and it's one of the most anticipated moments in the entire crypto calendar.

When Bitcoin launched, miners received 50 $BTC per block. That reward has been cut in half three times already, and today miners earn 3.125 Bitcoin per block. The next halving will drop that to 1.5625 Bitcoin.

The reason this matters is simple supply and demand. If demand stays the same but the supply of new coins slows down, basic economics says the price should rise. That's exactly what happened after the previous three halvings. Each one was followed by a significant bull run, with #BTC reaching new all time highs within roughly a year of the event.