What is the simplest explanation of why Bitcoin has a fixed supply and why that is supposed to matter - the honest answer

[Outlaw]

I understand Bitcoin exists but I genuinely do not understand why the 21 million limit matters or why people think it is valuable because of it. Can someone explain it without the hype?

Looking for the honest version not the moonboy version

[Isla]

The honest version: scarcity alone does not create value. Gold is scarce and valuable. Sand is scarce on the moon and worthless. The 21 million limit matters only if people agree it matters and that agreement holds

[Slate Mike]

The actual mechanism: new Bitcoin is created as a reward for miners who process transactions. That reward halves every four years. By 2140 the last Bitcoin will be mined and after that miners only earn transaction fees. The schedule is enforced by the code and cannot be changed without consensus from the entire network

[GlassyCandle]

Why it is supposed to matter: every government currency can be printed in unlimited quantities. Central banks create money regularly. Bitcoin cannot be inflated by any government, company, or individual. The appeal is a store of value that nobody controls

[HitmanMatt53]

The counterargument: a fixed supply currency is bad for an economy because you need money supply to grow with the economy. Bitcoin maximalists accept this and argue Bitcoin should be savings not spending money

[QuantumKnight]

The honest uncertainty: the 21 million limit only holds as long as the majority of people running the Bitcoin software agree to keep it. It has held for 17 years and changing it would be economically catastrophic for holders so the incentive to maintain it is strong

[Dan]

Compare it to gold: gold has been used as money for thousands of years because it is hard to produce, durable, and divisible. Bitcoin has similar properties digitally. Whether that makes it worth what people pay for it is a different question

[Slay40]

The simple version: Bitcoin is a bet that people will continue to agree that a fixed digital supply is worth something. So far that bet has been correct. Future bets are uncertain