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Comment Re:Good Thing (Score 1) 195

Pretty much all the power needed for a transaction is going to be the mining (a transaction isn't valid unless a miner has entered it into a block). So we can do a quick-and-dirty calculation; if we assume:

- 150000 Thash/s total network performance
- power consumption of 1kW per Thash
- power cost of 10 cents per kWh
- 6 blocks per hour
- 400 transactions per block

((150000 * 0.1) / 6) / 400 = $6.25 per transaction

Comment Re:They will break all the encryption (Score 1) 53

Symmetric (shared-key) algorithms do have vulnerabilities to quantum computing: Grover's algorithm allows a brute-force search to be performed in square-root time of the key size (i.e. 256-bits -> 128-bits, 128-bits -> 64-bits). This isn't a big problem as long as you're using at least 256-bits.

Comment Re:No. What's up with these PC video screens? (Score 1) 342

There are loads of 1920x1200 monitors available. Looking at my local hardware shop's page, there about 30 different models with both TN and IPS screens from the usual suspects (Acer, ASUS, Dell, HP, NEC, Samsung, etc).

I prefer that extra bit of height and use a 2560x1440 27-inch Dell.

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