So if a country with large resources wants to fuck up bitcoin they need only have 2 large hydoplants and 52% of the hash.
Thus CHINA could do it for about 6 billion
let check the math.
we are at 330 eh or 330,000ph or 330,000,000th
3,300,000 s19 pros = the network.
say 1000 for 1 or
3,300,000,000 cash to match the networks hash
let China take over bitmain build the units and they would make some extra ones so 4 billion means
4.0 all china 3.3 rest of us
you need power
4 units = 13.2kwatts
40 units = 132kwatts
400 units = 1320kwatts
4000 units = 13200kwatts
40000 units = 132000kwatts
400000 units = 1320000 kwatts
4000000 units= 13200000kwatts or 13200megawatts this dam in china does 20,000 megawatts
https://en.wikipedia.org/wiki/Three_Gorges_Damhttps://en.wikipedia.org/wiki/List_of_largest_hydroelectric_power_stationsso at the moment China could destroy btc for under 6 billion dollars if they choose to do so.
This is a roadblock to adaptation worldwide btc currency
I posted it before but there lies truth in what Antonopoulos says:
Andreas Antonopoulos - 51% Bitcoin Attackhttps://www.youtube.com/watch?v=ncPyMUfNyVMDo you think he is correct cause my math above is accurate.
China would be the player to cause the attack as they build most of the gear.
No need to do this today or tomorrow but if BTC did get big say 500k a coin it could be tempting.
It kind of calls for a gear race or at least a gear decentralization of plants.
USA is to open a chip plant in NY
https://www.computerworld.com/article/3675354/micron-to-build-largest-chip-factory-in-us-history.htmlI believe your math is roundabout correct. But that doesn't invalidate what Antonopoulos says.
If such an attack happened, nobody would value the fork of the attackers, after they are discovered.
I don't even know if they could pull off the same attack several times after being caught.
The Bitcoin network has a community behind it sharing the same values and that's (an intentional) part of its strength.
I'm sure our community would get together and quickly secure the network by any necessary means ...
even if that meant a kind of temporary centralization or something.
But I'm just poking around in the dark. There are some very smart people who already figured out the possibilities and also the most 'successful' objectives of an attacker as well as the necessary counter measures.
I'm sure many WOers have a shitload of knowledge and educating links to share on that rather ancient topic.
Right I get that. But as I said btc could go to 100-500k and do it quickly.
As I type the possibility that the gear is in place and ready to attack is not very high.
But
2017 19.9k
2021 69.1k
2025 200k why not and at this moment how much gear is in direct control of China 🇨🇳 Russia 🇷🇺 USA 🇺🇸
governments. We dont know.
Remember the hashrate attack done in 2021
a 50% drop in mining due to a Chinese mining ban.
How about right now Chinese government direct controls 20% of all mining gear.
They could slash the hashrate by 20% on day 1 of the 14 days.
In fact there is evidence this is being tested as I type.
I will post a link.
so is it more likely variance or testing of a reverse hashrate attack
DO NOT POST SESC LINKS here it is due to the bold above.
Early numbers are whacked.
https://www.bitrawr.com/difficulty-estimatorLatest Block: 778240 (2 minutes ago)
Current Pace: 72.0918% (65 / 90.16 expected, 25.16 behind)Previous Difficulty: 39156400059293.19
Current Difficulty: 43053844193928.45
Next Difficulty: between 31256691304059 and 42046996715428
Next Difficulty Change: between -27.4009% and -2.3386%
Previous Retarget: Yesterday at 8:27 PM (+9.9535%)
Next Retarget (earliest): March 11, 2023 at 4:43 AM (in 13d 17h 13m 30s)
Next Retarget (latest): March 16, 2023 at 7:32 AM (in 18d 19h 2m 43s)
Projected Epoch Length: between 14d 8h 15m 8s and 19d 10h 4m 20s
Copy stats to clipboard
I know there is 'bad' luck and or variance.
But -28% is weird.
now look some more just 200 blocks later
Phill, it was too early to judge, we climbed up real fast
Latest Block:
778444 (2 minutes ago)
Current Pace:
96.5416% (269 / 278.64 expected, 9.64 behind)
Previous Difficulty:
39156400059293.19
Current Difficulty:
43053844193928.45
Next Difficulty:
between 41659082621125 and 42697802191261
Next Difficulty Change:
between -3.2396% and -0.8270%
Previous Retarget:
last Saturday at 3:27 AM (+9.9535%)
Next Retarget (earliest):
March 11, 2023 at 6:27 AM (in 12d 4h 33m 30s)
Next Retarget (latest):
March 11, 2023 at 3:30 PM (in 12d 13h 35m 49s)
Projected Epoch Length:
between 14d 2h 59m 51s and 14d 12h 2m 10s
20% was unreal to be honest, 3% is sustainable, maybe 5% at best, i do not see a drop more than that happening this epoch, i actually think we will get a small positive adjustment.
and almost back to normal
it appears to me a huge amount of hashrate is in the hands of 1 player and that this is an example of a possible reverse hashrate attack.
the math that would allow for the network to be at 72% at block 65 then up to 96% at block 269 is very high long shot.
the simple conclusion is someone can turn as much as 33% of the network on and off at will.
as little as maybe 20%.
So simple add to this capacity most likely China because they build most of the gear.
Then do a reverse hashrate attack when ever you please.
How would you like btc to be 500k in 2029 and the networks drops 65% of its hash on day 1 of the diff adjustment.
BTW I have seen these very deep early drops during the first 100 blocks of a new 14 day period on more than 1 occasion.