eventual death spiral scenario is the price going so low that to initiate avalanche of mining rigs switch offs and abandoning ... don't think that is really possible. BTC is not a price game. It is a true novel tech for scaling transactions. A lot of scaling. Average 300 TIMES lower txs cost than traditional fiat requiring soooo costly reproduction, upbringing, education, qualification and life and activity support, infrastructure for millions and millions of people. Of course machinery and electricity are cheap and cheaper to reproduce. Cf.: Moore's law and Koomey's law.