311–320 of 397 posts
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I would think far less. HFT isn’t intentionally computationally expensive.
And the HFT industry is incentivized to use as little processor time as possible, and thus as little power as possible.
They'll take a 400W 10GHz CPU over a 5mW 1 GHz CPU every time, if it generates better financial returns.
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Where is this confusion coming from? Are you suggesting there won't be colder water around the data centre? Or just nitpicking for the sake of it? It looks like my original comment hit some HN ideological hot spot (unintentionally), but it's entirely uncontroversial scientifically.
> Where is this confusion coming from? Are you suggesting there won't be colder water around the data centre? If a fish is swimming in 24°C water, it can't simultaneously be swimming in 19°C water. Maybe its friend 10 meters away is swimming in 19°C water, but that doesn't help the first fish. Maybe that fish feels more comfortable in 24°C water, because it needs a certain body temperature to keep its internal proces…
This is probably more relevant at temperature gradients greater than 5C, but it's thermodynamically possible.
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Task for some more suited than me: turn transactions into protein representations, and every mining operation becomes a folding operation.
The problem with solving "real" problems instead of synthetic ones is that they aren't uniformly difficult, so clever people will game the system.
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If my calculation is correct, the total annual electricity production in the world (I used 20 279 PWh) would heat up the oceans (1 347 000 000 km³ of water) by 0,0129°C. It's rather easy to calculate because one calorie is the energy required to heat up one gramme of water by one degree Celsius, the rest is just unit conversions, but I could have messed up anywhere of course. Even if I'm off by a few orders of magnit…
> Even if I'm off by a few orders of magnitude I'm not saying there is a problem with your calculations, but if you were just one order of magnitude off, then after 10 years that would be 1°C, which is a colossal amount. The main problem with global warming, as I understand it, is that 1 or 2 degrees change to the atmosphere would melt a huge amount of polar ice. I imagine that if the sea were increase in temperature…
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If my calculation is correct, the total annual electricity production in the world (I used 20 279 PWh) would heat up the oceans (1 347 000 000 km³ of water) by 0,0129°C. It's rather easy to calculate because one calorie is the energy required to heat up one gramme of water by one degree Celsius, the rest is just unit conversions, but I could have messed up anywhere of course. Even if I'm off by a few orders of magnit…
> Even if I'm off by a few orders of magnitude I'm not saying there is a problem with your calculations, but if you were just one order of magnitude off, then after 10 years that would be 1°C, which is a colossal amount. The main problem with global warming, as I understand it, is that 1 or 2 degrees change to the atmosphere would melt a huge amount of polar ice. I imagine that if the sea were increase in temperature…
or 1000 years if off in the other direction
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No, because you can not convert heat alone into energy. You need a heat difference (something hot and something cold). And the efficiency of the conversion depends on the temperature difference.
Right, but if you’re putting it in a place that is naturally cold, you’re going to have a temperature differential you can then work with to recycle the heat, wouldn’t you? Obviously you’re going to be losing heat still, but you could reclaim some of that energy.
But since the goal is to cool the datacenter, we want the temperature difference to be as small as possible.
Reclaiming energy from waste heat usually only pays off in industrial settings. If you have very hot steam, you can use it to power a steam turbine and generate electricity. But at lower temperatures, the efficiency is too low.
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Task for some more suited than me: turn transactions into protein representations, and every mining operation becomes a folding operation.
Here's the problem for me. These mining operations can be exploited to an extreme. Any scientist or professor with knowledge in protein representations will have an unfair advantage over normal miners. This gap will be even larger than the hashpower gaps we see between ASICs and "normal" miners in bitcoin, litecoin, etc because scientists will have access to not only hardware but also extremely specific domain knowle…
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The problem with solving "real" problems instead of synthetic ones is that they aren't uniformly difficult, so clever people will game the system.
As long as gaming the system means solving a real problem, that would be a good thing right?
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As long as gaming the system means solving a real problem, that would be a good thing right?
Not if you want the currency to replace traditional currencies in the future.