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June 25, 2011, 02:56:48 AM |
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And in about 10 days, if the difficulty jumps up another 50%, it'll reduce that 0.636 BTC down by a factor of 1/1.5 = 0.666, which would make it 0.4236 BTC. 10 days after that, another 50% jump would reduce it to 0.2821 BTC, then 0.1879 BTC, etc. This is why you should never estimate earnings with no difficulty increases. 50% increases every 10 days is a lot but it hasn't really been letting up. 33% increases every 10 days is probably more reasonable but even at that slower rate, BTC needs to be at least $30 to possibly break even on new rigs.
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