Bearish for Bitcoin
Post-Quantum Crypto Implementation Costs
Quiet
Little coverage in Bitcoin in the 7 days to 21 October.
Judged on the 7-day share of Bitcoin coverage to 21 October
Updated 21 October 2026
The bearish argument: Post-quantum cryptographic solutions carry severe performance costs that will significantly increase transaction fees and blockchain storage requirements, creating practical implementation challenges for Bitcoin.
How attention has changed
0% of Bitcoin coverage
Rolling 3-day share · as of 21 Oct 2026
This measures attention in published coverage, not the likelihood of a price move.
| Date | Share of coverage |
|---|---|
| 2026-09-22 | 0% |
| 2026-09-23 | 0.9% |
| 2026-09-24 | 0.7% |
| 2026-09-25 | 0.5% |
| 2026-09-26 | 0% |
| 2026-09-27 | 0% |
| 2026-09-28 | 0% |
| 2026-09-29 | 0% |
| 2026-09-30 | 0% |
| 2026-10-01 | 0% |
| 2026-10-02 | 0% |
| 2026-10-03 | 0% |
| 2026-10-04 | 0% |
| 2026-10-05 | 0% |
| 2026-10-06 | 0% |
| 2026-10-07 | 0% |
| 2026-10-08 | 0% |
| 2026-10-09 | 0% |
| 2026-10-10 | 0% |
| 2026-10-11 | 0% |
| 2026-10-12 | 0% |
| 2026-10-13 | 0% |
| 2026-10-14 | 0% |
| 2026-10-15 | 0% |
| 2026-10-16 | 0% |
| 2026-10-17 | 0% |
| 2026-10-18 | 0% |
| 2026-10-19 | 0% |
| 2026-10-20 | 0% |
| 2026-10-21 | 0% |
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The argument and its evidence
Several outlets can carry the same argument; no single article is its origin. Read each one in its own context.
All articles matched to this narrative
Recent coverage
Earlier coverage
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Decrypt · Published 22 Sep 2026
Inside Coinbase’s $250 Billion Playbook for Post
In coverage record: 23 Sep 2026
“there is growing concern among experts that not all post-quantum signature schemes will be "MPC-friendly"”
Read article -
CryptoSlate · Published 22 Sep 2026
Lightning quantum defenses need more than a Bitcoin upgrade
In coverage record: 23 Sep 2026
“During static synchronization of a full network graph, the default ML-DSA-44 and ML-KEM-768 design increased gossip downloads 10.2 times and stored graph data 8.8 times compared with vanilla Lightning.”
Read article -
CryptoSlate · Published 27 Aug 2026
How Bitcoin just proved it could survive a quantum attack
In coverage record: 28 Aug 2026
“Although the transaction is valid under Bitcoin's consensus rules, it is nonstandard under default node policy and therefore will not normally propagate through the public mempool. StarkWare said the mainnet test cost several hundred dollars, while the project's open-source repository estimates roughly $75 to $150 for some configured cloud-GPU search phases.”
Read article -
International Business Times · Published 8 Jul 2026
Crypto Firms Are Preparing For The Quantum Era. Tomorrow's Computers Could Break Today's Encryption.
In coverage record: 9 Jul 2026
“Post-quantum digital signatures are generally larger than current signatures, which can increase storage and bandwidth demands. Zach Pandl, head of research at Grayscale, told Reuters that those changes could raise costs and affect user experience, especially on blockchains with fixed block-size limits such as Bitcoin.”
Read article -
Decrypt · Published 3 Jul 2026
Day? The Quantum Threat to Bitcoin Explained
In coverage record: 4 Jul 2026
“Post-quantum encryption and digital signature schemes come with steep performance costs, since they're far larger and more resource-intensive than today's lightweight 64-byte signatures. Today's digital signatures are about 64 bytes. Post-quantum versions can be 10 to 100 times larger.”
Read article