MARA Holdings sold $1B in $BTC to buy back debt, and the stock jumped 10% on the news. This is the miner playbook getting rewritten in real time. For two years, the thesis was: mine BTC, hold BTC, stack BTC. MARA just ran the opposite play, sell BTC, reduce debt, free up capital for AI and energy infrastructure. The market loved it. A 10% single-day pop for a miner that just liquidated its core asset is the market saying: 'We were never really paying you for the Bitcoin. We were paying you for the balance sheet optionality.' CoinShares separately flagged that some listed miners could derive as much as 70% of revenue from AI by end of 2026. The Bitcoin mining narrative is quietly becoming an AI infrastructure narrative wearing a miner's hard hat. If other major listed miners announce similar debt-reduction or AI-pivot moves within the next 7 days, the market is repricing the whole sector away from BTC price correlation. If MARA's stock gives back the gains while BTC stabilizes, the pop was a short-squeeze, not a thesis change.