Part 6/15:
A fascinating consequence of these physical constraints is the potential for isolated cryptocurrencies—"Mars Coins" or "Luna Tokens"—to emerge. Colonies might establish their own proof-of-work networks due to the inefficiency of mining across vast distances, leading to chains that may sometimes diverge from Earth's Bitcoin blockchain.
The concept of the "hash bomb" exemplifies how a reinforced chain with more proof-of-work than the existing one could threaten the stability of the original network. For a colony on Mars, launching an alternative blockchain optimized for local conditions (e.g., longer block times or different mining rules) could, if sufficiently incentivized, challenge the legitimacy of Earth's chain.