stephen999 · HackerTrans

stephen999

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4 ปีที่แล้วdiscuss

I have a Toyota rav4 plugin in europe. Gas costs 1.7€/liter, gets about 6l/100km for about 10.7 cents per km. On electric it goes about 73km for 14kwh which costs about .60€ per kWh which is about 11.3 cents per kWh. Of course the at-home rate is about half this cost so you will do better there, but fast-charge rates are about the same gas and electric.

4 ปีที่แล้วdiscuss

So what? You can try and clean up both. Particulate is not the only pollutant either. NOx and ozone are also emitted from diesel cars.

4 ปีที่แล้วdiscuss

Huh? Most of Europe has socialized medicine and they have a ton more diesels and thus air pollution than the US.

4 ปีที่แล้วdiscuss

This will only work for a very unbalanced exchange though where the attacker has way fewer resources. The cost of an iron dome intercept will be far higher than that of an artillery shell. In an exchange of equally resourced opponents the attacker will quickly overwhelm the defense capabilities.

4 ปีที่แล้วdiscuss

A heat pump is efficient.

4 ปีที่แล้วdiscuss

Really he controls NATO member Latvia? He controls Finland? He controls Poland? All these countries are only a few hundred miles away.

5 ปีที่แล้วdiscuss

Just distributing more money to people doesn’t create more resources in the real world. It just makes those resources cost more in dollar terms because more people have more money to spend on it. But the dollar value is somewhat arbitrary, doesn’t matter if it’s higher or lower just the ratio to incomes.

5 ปีที่แล้วdiscuss

It’s much slower. GPU single thread performance is very slow. Unless you are doing some specialized operation that has a special instruction on GPU, it will be slower.

GPU clock speeds are lower in general and the CPU has a much wider super scalar pipeline. Can be 4-8 wide vs single or double wide for most GPUs. It also has many latency-hiding techniques for a single thread. The GPU has none, it uses multiple threads to hide latency.

5 ปีที่แล้วdiscuss

Could you not use resistive heating powered by solar/wind/hydro?

https://en.wikipedia.org/wiki/Joule_heating

5 ปีที่แล้วdiscuss

Well, the alternatives for CFC-generating are already developed and in the marketplace. There are still no equivalent alternatives for many oil-using products. Kind of indicates that it is technically easier.

The fact that there are CFC replacements but not oil replacements for all use-cases indicates that it's more difficult, no?

> basically everyone agrees it's cheaper to deal with climate change

I'm not sure that's the case. Seems like a lot of people are either hoping that it's not going to affect them that much, or that some miracle technology will be developed which will fix the problem more cheaply and not require any change in behavior on their part.

5 ปีที่แล้วdiscuss

Technically possible. There were alternatives developed quickly to the CFC problem that worked about as well and were only slightly more expensive. This lead to support for them politically because it was a no-brainer to switch over.

On the other hand, alternatives to oil and gas are much more expensive and require significant sacrifices compared to just using oil.

Electric cars are more expensive than ICE. They have less range and there is a lack of equivalent charging infrastructure. Those are being solved but it’s taken 30 years or more of working on battery technology and efficiency to match ICE cars for convenience.

Solar panels and wind has been similar. Years of development and billions of dollars to optimize it and still has downsides compared to oil and gas.

Things like airplane fuel and plastics there are no easy solutions to still.

Even the things that have solutions like electric cars, solar panels, etc require tons of new infrastructure to switch which is expensive both in dollars and carbon cost.

Just look at the total dollar amount of replacing all oil-using cars/trains/planes/power plants/factories/etc and compare to all CFC-generating devices it’s a lot more.

5 ปีที่แล้วdiscuss

These are good but also poor examples. The solutions to those were much much easier. If carbon reduction were that easy we would have done it already.

6 ปีที่แล้วdiscuss

Pantani was in an age where drug testing was not very good so they pushed the limit of hematocrit level to improve performance. Now the tests are much better and so the level of drugs and thus side affects seems to be lower.

You don’t hear of cyclists dying in their sleep really of coagulated blood from EPO.

There are some legal pain killers like tramadol and excessive caffeine that you might not do if you are optimizing for health but not sure how detrimental that is long term.

6 ปีที่แล้วdiscuss

But can it run crisis?

7 ปีที่แล้วdiscuss

Is there any public code for these perf tools?

8 ปีที่แล้วdiscuss

Radiation at 13nm cannot use normal mirrors or lenses for guiding/focusing the beam. The ones we know of reduce the power significantly such that your light source has to be very powerful. Generating this radiation is not easy.