There's only one Mona Lisa. Bitcoin was deliberately built on the same idea

[Quarry18]

Satoshi Nakamoto believed scarcity could create value where none previously existed, the same logic behind why there is only one original Mona Lisa, only so many Picasso paintings, and a finite supply of gold in the ground. Bitcoin was designed to make that same kind of scarcity possible for a digital product for the first time, hard coding a permanent cap of 21 million coins into its underlying software from the very beginning, a limit no government, company or individual can change without agreement from the entire network

The mechanism that enforces this gradual scarcity is called the halving. Roughly every four years, or after every 210,000 new blocks get added to the blockchain, the reward miners receive for adding a new block gets cut exactly in half. This steadily slows the rate at which new bitcoin enters circulation over time, in sharp contrast to traditional currencies, which central banks can print in essentially unlimited quantities, sometimes fueling the very inflation Bitcoin was designed to be resistant to

This stands in deliberate contrast to how fiat money usually works, and it is why Bitcoin gets described as deflationary by design rather than inflationary. As block rewards keep shrinking with each halving, the network's long term security is expected to gradually shift away from depending on those rewards and toward relying more heavily on transaction fees instead, a transition that has already begun and will only become more pronounced as the supply cap gets closer and closer to fully mined out over the coming decades

What is the Bitcoin Halving? How Bitcoin's Supply is Limited - Decryptdecrypt.co

[Scholar29]

The Mona Lisa and Picasso comparison is such a clean way to explain digital scarcity to someone who has never thought about why a hard supply cap would even matter

[SystemWarden64]

210,000 blocks being the actual trigger rather than a fixed calendar date is a detail that gets glossed over a lot, the four year figure is really just an average

[HiddenSeb75]

The eventual shift from block reward security to transaction fee security is the part that quietly matters most for Bitcoin's very long term future and gets the least attention

[Context Kayla]

No government or company being able to change the 21 million cap without full network agreement is the detail that actually makes the scarcity claim credible rather than just marketing

[Rory93]

This finally explains why halving events get so much press coverage every four years, it does change the fundamental economics of new supply entering circulation

[Hollow Ronan]

Deflationary by design versus the usual inflationary tendency of fiat currency is an interesting philosophical contrast, whatever you think of the practical outcome

[Pixel Mark]

Good reminder that scarcity alone does not automatically create value, it just removes one particular obstacle, demand still has to actually exist and hold up over time