Part 6/9:
Several risk factors could significantly threaten Bitcoin’s long-term sustainability. Concerns arise around increased mining costs, which, if not countered by significant adoption, could force many miners to exit the market. A potential drop in network activity could create complications around the necessary adjustments in mining difficulty, leading to fears of a 51% attack—where a single entity effectively gains control of the network.
Furthermore, externalities such as fluctuating energy prices due to increased global demands may push governments to impose mining restrictions, dampening Bitcoin's growth momentum.