The X platform served as the stage for a debate on Bitcoin’s vulnerability to quantum computing, featuring Adam Back, CEO of Blockstream, and Charles Hoskinson, founder of Cardano. Back argues that post-quantum (PQ) cryptography research for Bitcoin is progressing rapidly and labeled current criticisms as “financial fearmongering” driven by interests in tech companies and specialized altcoins.
BIP 361: Welcome to ShitcoinLand, Bitcoin https://t.co/PdSRUgbQVz
— Charles Hoskinson (@IOHK_Charles) April 15, 2026
For his part, Hoskinson questioned the technical feasibility of this defense without resorting to a hard fork. The critical point lies in “legacy coins” (such as those belonging to Satoshi Nakamoto), stored in old address formats that expose public keys. According to Hoskinson, these addresses would be easy targets for Shor’s algorithm in a future quantum computer, putting millions of inactive BTC at risk—protection of which would require profound structural changes to the protocol.
This confrontation exposes the tension between Bitcoin’s conservative evolution and the need for disruptive solutions to future threats. While Back plays down the immediate risk, treating it as a “laboratory experiment,” the market cautiously watches to see if the Bitcoin ecosystem will reach a consensus to shield its oldest funds.
Source:https://x.com/IOHK_Charles/status/2044438584065659242
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