Re: New Diff thread Mar 22 to Apr. 5 not ready for prime time
So does anyone know why the network hashrate has jumped in the last few days? 
There is speculation that antpool had significantly above expected luck to account for part of the jump. Obviously some of the jump is from new (likely more efficient) hardware being brought online. Part of it could probably be explained by batch 5 (?) of S5's being brought online. Bitmantech had an unusually long production run for this batch of S5s so it is possible they were using some of their production capacity to build their next generation of more efficient miners and brought them online for testing/were mining for themselves. Another possibility is that a private farm built a lot of privately built miners with their own chips. I haven't been following the hashrate distribution closely but it looks like the "unknown" share of found blocks is very high right now and I would think a lot of the unknown found blocks are from corporate miners not mining on pools.
My guess is someone deployed a secret farm so to speak. If so I am hoping bitfury simply killed off old gear and replaced with new gear. say they dropped 20ph and added 40ph.
and after this 8 to 12 % jump we stay flat.
I hope it goes back to flatter. My biggest fear is someone has next gen chips and pumping them out. I am hoping those chips take a few months for everyone to get though. If a company does have next gen chips I could see them keep putting out quite a bit each week.
Yeah but it is moron to exceed by a lot. By that I mean a one time jump like I describe below for bitfury would be smart for them to do.
The math shows time and time again. replace your shit gear with better gear and grow somewhat.
So the big bitfury gear was about 6th at 4000 watts.
If they drop in a 10th at 3000 watts.
on 1 to 1 basis their 20 MW farm was doing 30ph
so it now does 65ph
they may have powered off a lot last jump and powered on 50ph. this jump.
look at bottom line they were spending .67 watts a gh now they spend .3 watts a gh the market takes a big 10-15% hit lik it did last fall and it then goes flat for 5 months or so.
At 30ph using 20 MW with 6 cent power a farm makes 50800 a day.
at 65ph using 20 MW with 6 cent power a farm makes 143,688 a day.
So the economic sense of bitfury shutting off the remaining shit they were mining getting that nice little 1.50% drop last time.
Then being perfectly setup to turn on a ton of gear for an entire 13 days making 90k a day in extra money for 13 days = 1 million plus in 2 weeks not forgetting the other 50 k so 1.7 million in 12-14 days.
If all of the above is true. diff will go flat. and bitfury will sell a lot of coins fast.. I am holding money to buy when we drop under 200 a coin.