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Is Bitcoin ready for a quantum world? Or not yet?

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Published: 21 Apr 2026 › Updated: 21 Apr 2026Is Bitcoin ready for a quantum world? Or not yet?

Is Bitcoin ready for a quantum world? Or not yet?

Is Bitcoin ready for a quantum world? Or not yet?

A debate is quietly heating up around two proposals: BIP-360 and BIP-361.

They’re not part of Bitcoin’s roadmap. They’re not approved.
But they raise questions that are hard to ignore.

Let’s break it down simply:

  • BIP-360
    A proposal to introduce quantum-resistant outputs.
    The idea: prepare Bitcoin for a future where quantum computers could break current cryptography.

But:

  • It doesn’t choose a final algorithm yet
  • Post-quantum signatures are significantly larger than today’s
  • That could mean fewer transactions per block, higher fees, heavier infrastructure

In short: a step toward security… with real trade-offs.

  • BIP-361
    A much more controversial idea.
    It suggests that BTC sitting on old (non-upgraded) addresses could eventually be frozen if not migrated within a certain timeframe.

That raises obvious questions:

  • What happens to lost coins?
  • What happens to immutability?
  • Who decides what is “inactive” or “non-compliant”?

So what’s really being debated? Just tech? Nope.

  • Security vs scalability
  • Preparation vs overreaction
  • Immutability vs adaptability
  • Freedom vs coordination

And maybe most importantly: How does Bitcoin evolve… without becoming something else?

It’s worth remembering:

  • These are early-stage proposals
  • No consensus exists
  • Bitcoin upgrades historically take years (when they happen at all)

But the topic itself is interesting.
Because it forces a bigger question: What do we expect from a system designed to last decades… in a world that keeps changing faster?

Curious to hear your take:
Had you come across these proposals?
Do you think preparing for quantum threats should already be a priority?
Or is this a problem for a later stage?

No right answers here.
Just a conversation worth having. 🧡
Screenshot 2026-04-20 at 11.40.40.png

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