the design of the units is not the problem. the outdated hardware is. envions selling point never really were the units themselves (there are several other container rigs around, each with different design goals and I've seen pretty nice designed ones, partly much better than what we saw from envion, but I don't want to judge on just some images) - envions point was aquiring cheap energy and bring the units there, which is basically a good idea. As we manage several farms and use our inhouse software (which basically puts those farms on autopilot), we know, that it mostly comes down to reliable software to keep maintainance interaction low.

I actually wonder more, why they said, they produced units but none of them were productive and noone ever confirmed any payout. AFAIK envion was running for several months with no outcome at all. sounds very strange to me from a business side and is not very convincing. Even if the mining craze of last year would still be going on, they would've never ever met their promised goal of 165% (or whatever it was), they also had some pretty foolish and naiv calculations done, as they calculated it like the units were all instant productive, which wasn't even remotly the case.