While governments around the world are using quantitative easing to print money, Bitcoin is set to undergo quantitative tightening.
The Halving reduces the reward that miners receive for confirming transactions on the Bitcoin blockchain, and subsequently, Bitcoin's rate of supply will be cut in half.
Here's a deep dive I wrote on what the Halving is, and why it matters:
https://medium.com/ryze-crypto-digest/the-bitcoin-halving-explained-d1dd1c7833f0