Bitcoin miners perform a valuable service by validating BTC transactions and keeping network secure. Minders used to get 12.5 BTC every block they mine (approximatly every 10 minutes).
Today, Block 630,000 was mined and a reward of only 6.25 BTC + fees was paid. The halving has occurred. Miners are now getting only half of reward in BTC for what they do.
You care about this because BTC annual inflation is now 1.8%, which is smaller than the annual inflation of gold.
In the times of unlimited Fed QE, world-wide liquidy injections, and negative interest rates BTC is a scarce commodity with deminishing inflation. Combine it with 8-12% annual returns on fiat deposits in the DeFi space – the crypto ecosystem is becoming more attractive.