So if it is already unprofitable to mine bitcoins, why is the hashrate growing at the constant rate? VCs burning money rushing to increase their network share, but for what reason? Also, if that is the case for some unknown consideration, would not they keep mined bitcoins off the market, does not make any sense to sell at a loss?
The hashrate is growing because ASIC manufacturers have to unload their miners, which have been in the pipeline for quite a while--since they began designing the chips, which translates to ~8 months on the average.
If you are an ASIC manufacturer, you have two options:
1. Eat NRE, pay someone to grind up your stock of chips and haul it away. <==Not smart.
2. Sell chips at a loss, partially recoup your investment. <==Pick this if you're smart.
If you are a miner, and ordered shit from an ASIC manufacturer months ago, you have two options:
1. Sign for the package, walk to the nearest trash can, throw it away. <==Not smart.
2. Fire up your miner, and keep mining until it costs more in electricity to mine one coin than the coin's worth. You won't "ROI," but you'll lose less than with (1). <==Pick this if you're smart.
Re. "keeping mined bitcoin off the market": Mined bitcoin is no different from any other bitcoin because fungibility. It makes no more sense to keep mined bitcoin off the market than keeping hoarded bitcoin off the market.
Any of this help?
Edit:
Simple overshoot...these devices coming online right now were designed 6 months ago, produced last month....and as soon as they hit the mine they are non-profit. The operators have no choice but to keep going forward...they sunk their costs 6 months ago in the past when the current hashrate was unthinkable.
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This.