That's a brand I haven't heard of in a long time. I had a 8gb HDD from the brand in 2000 until my sister kicked the computer case out of frustration which ended up shorting some chips on the drive. I mourned the loss of my music collection for quite a long time.
This is very clearly a move to sell SpaceX IPO at overinflated prices by promising a vision of a future which is perpetually 5 years away. SpaceX is going to be the next meme stock.
I'm not an expert in any way, but i personally benchmarked [1] juiceFS performance totalling collapsing under very small files/operations (torrenting). It's good to be skeptical, but it might just be that the bar is very low for this specific usecase (IIRC juiceFS was configured and optimized for block sizes of several MBs).
Tailscale works behind NAT, wireguard does not unless you also have a publicly reachable relay server which introduces its own maintenance headaches and cost.
Does a system being deterministic really matter if it's complex enough you can't predict it? How many stories are there about 'you need to do it in this specific way, and not this other specific way, to get 500x better codegen'?