With the low price of Grin, sales of new mining hardware, both GPU and ASIC, have come to a grinding halt. ROI is negative for miners. Accordingly, ROI is very negative for ASIC and Rig manufacturers requiring expenditures of $5-$10 million for production . Since sales are not materializing, neither Innosilicon or Obelisk have any incentive to tape-out to semiconductor foundries and spend millions for wafer mask, test boards and other prototyping related cost. It is cheaper to refund customers than to throw away several million dollars for an ASIC that no one wants to buy.
If production dates are to be achieved, Innosilicon needed to have taped out aalready and Obelisk needs to do so shortly.
At the Magical Crypto conference yesterday, Innosilicon staff privately admitted that Grin miner sales are very slow. Obelisk’s published pre-sales are tiny, not nearly enough to cover a portion of tapeout cost. Vidtoo seems to be non-existent as they would have samples in-house in order to make a July ship date. The negative economics and Innosilicon’s history of cancelling programs such as their A10 Ethereum miner, it’s very likely they will not ship their Grin miner and also not let any one know.
It is quite conceivable with no ASICs and minimal GPU support that the C32 hashing rate will fall below 10,000 graphs/second in 2020, making the network insecure and subject to attack.
GPU’s are not a viable fallback strategy as the population of GPU’s capable of mining C32 at 1 GPS at full fidelity is minuscule. Only Nvidia and AMD high end GPU’s with 16GB or more memory can mine C32. These boards will be priced at $1500-$4000+. High end GPU’s will be in limited supply and in high demand by AI users. They are unlikely to be used for C32 mining unless rented to mount an attack on Grin.
The C31 POW phase-out sounds like a doomsday scenario for Grin and it’s mining network. With negative economics and a high probability of C32 miners being stillborn, I would urge the Grin Governance Committee to delay the phase-out of C31.