“When quantum computers arrive, Bitcoin will collapse”: this is one of the major FUD trends of 2025.
First, if anyone ever controlled a real Cryptographically Relevant Quantum Computer, a quantum machine actually capable of breaking ECDSA, Bitcoin would be the least of your problems. A CRQC wipes out the entire digital world. It forges SSL certificates, impersonates banks, governments and corporations, drains accounts in any financial institution, compromises the structural security of the Internet, and demolishes the PKI infrastructure that modern life depends on. At that point, the Bitcoin price becomes a footnote, probably somewhere under “everything is on fire”.
Second point, equally inconvenient for the FUDders: Bitcoin is one of the easiest large systems on the planet to upgrade. A soft fork, a post-quantum signature scheme, a migration window, and the network moves forward. Nodes update. Users shift keys. Try doing the same with the global banking system, with its prehistoric POS terminals, siloed databases and 20yo servers. You would need a decade just to align meetings, and another decade to unplug whatever ancient Oracle box is still running in some basement.
The real quantum threat is systemic. If quantum risk ever becomes real, Bitcoin will likely be one of the few digital structures capable of adapting in time. That is the part nobody wants to say, because it destroys the narrative and the engagement numbers.
Quantum FUD is a joke. A tired one. The problem is that people talk about it without understanding even the first line of the script.
First, if anyone ever controlled a real Cryptographically Relevant Quantum Computer, a quantum machine actually capable of breaking ECDSA, Bitcoin would be the least of your problems. A CRQC wipes out the entire digital world. It forges SSL certificates, impersonates banks, governments and corporations, drains accounts in any financial institution, compromises the structural security of the Internet, and demolishes the PKI infrastructure that modern life depends on. At that point, the Bitcoin price becomes a footnote, probably somewhere under “everything is on fire”.
Second point, equally inconvenient for the FUDders: Bitcoin is one of the easiest large systems on the planet to upgrade. A soft fork, a post-quantum signature scheme, a migration window, and the network moves forward. Nodes update. Users shift keys. Try doing the same with the global banking system, with its prehistoric POS terminals, siloed databases and 20yo servers. You would need a decade just to align meetings, and another decade to unplug whatever ancient Oracle box is still running in some basement.
The real quantum threat is systemic. If quantum risk ever becomes real, Bitcoin will likely be one of the few digital structures capable of adapting in time. That is the part nobody wants to say, because it destroys the narrative and the engagement numbers.
Quantum FUD is a joke. A tired one. The problem is that people talk about it without understanding even the first line of the script.
