Last week Google officially moved their Q-Day estimate to 2029 and told every engineering team to migrate to post-quantum cryptography immediately.

Most Bitcoiners are still arguing about ETFs.

Here's the situation:

"Harvest now, decrypt later" is not a future threat. Nation-states are already collecting exposed public keys and sitting on them until the hardware catches up. If your public key has ever been on-chain — P2PK outputs, reused addresses — it may already be in someone's harvest bucket.

Rough estimate: ~1.7M BTC sitting in vulnerable P2PK outputs. A lot of that is Satoshi-era coins. That's not a rounding error.

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The response:

BIP 360 (Pay-to-Merkle-Root / P2MR) merged into the Bitcoin BIP repo in February 2026. BTQ Technologies launched a live testnet (v0.3.0) on March 20 — 50+ miners, 100k+ blocks, 100+ contributors. New bc1z address format, SegWit v2, Dilithium post-quantum signatures.

Not in Bitcoin Core yet. But the work is real and moving fast.

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What to do right now:

• Stop reusing addresses (should already be doing this)

• Move to fresh bc1q or bc1p — public key stays hidden until first spend

• Start watching BIP 360 — you want to migrate before the panic

• Keep stacking

The window to be calm and informed about this is open. It won't be forever.