The whole attraction of SiFive is that their instruction set is an open specification, so anyone can implement it themselves if they want. Most companies wouldn't want all that work and would rather license a design or buy an existing chip, but you can.
Intel is pretty much guaranteed to fuck things up. It's not in their DNA to be open.
Anime of the day is Tengen Toppa Gurren Lagann. It has giant robots throwing things at each other. It's good.
Backblaze has an enormous number of disk drives, perhaps enough to actually make a dent in Chia. You'd still need to prepare your farm locally before uploading it - it's the preparation that burns out drives; after that they're mostly idle.