Pre-emptive commit/reveal for quantum-safe migration (poison-pill)

In the recent exchange on the Bitcoin Development Mailing List, a proposal was put forward that delves into the preparation for quantum-safe cryptocurrency transactions. The discussion highlights the necessity of establishing a mechanism by which users could move funds to quantum-safe addresses before such addresses are formally defined and become operational. A crucial point raised was the need for either an adaptation of existing address types to incorporate quantum-resistant features or the introduction of a new type of address through a softfork. This would ensure that transactions remain secure against potential quantum computing threats.

The conversation further explored the technical requirements and implications of transitioning to quantum-secure transactions. One significant concern mentioned is the possibility that enabling such transactions might necessitate a hardfork, given that they would not comply with current consensus rules. The implementation of these transactions underlines the challenge of modifying the existing rule set in a way that accommodates new security measures without disrupting the network's operation. This part of the dialogue underscores the complexity of enhancing Bitcoin's infrastructure to fend off quantum computing risks while maintaining its foundational principles and functionality.