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A comment on A Bitcoin miner in every hand. Parent comment

Re:A Bitcoin miner in every hand by bduerst on Monday May 18, 2015 @03:37PM (#9566416)
Following your example of using the most efficient miner available and ignoring heat, size, etc. restrictions:

Average cost of electricity for U.S. households is $0.12/kWh [0]

0.05 Wh = $0.000006 average cost

Net Profit = $0.0000008801 - $0.000006 = -$0.000005120

Net profit margin = -581.7%

[0] http://www.npr.org/sections/money/2011/10/27/141766341/the-p...

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Re:A Bitcoin miner in every hand by aakilfernandes on Monday May 18, 2015 @04:02PM (#9566534)
The author states in the article he's more interested in expanding the use of the blockchain as a ledger (as opposed to a store of value).
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Re:A Bitcoin miner in every hand by bduerst on Monday May 18, 2015 @04:08PM (#9566573)
Which is strange given their cost-savings examples using bitcoin mining.

This might work for authentication, but they shouldn't sell it as "bitcoin-subsidizing devices for the developing world".

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