Bitcoin (BTC) ASIC miners — machines optimized for the sole purpose of mining Bitcoin — are currently selling at bottom-of-the-barrel prices not seen since 2020 and 2021, in what is being viewed as another sign of a deepened crypto bear market. According to the latest data from Hashrate Index, the most efficient ASIC miners, those generating at least one terahash per 38 joules of energy, have seen their prices fall 86.82% from May. 7, 2021 peak of $119.25 per terahash down to $15.71 as of Dec. 25. Miners in these category include Bitmain’s Antminer S19 and MicroBTC’s Whatsminer M30s. The same statement holds true for the mid-tier machines, with prices now averaging out at $10.23 after falling a massive 89.36% from its peak price of $96.24 on May. 7, 2021. However, the least efficient machi...