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Comment Re:By digital sovereignty. (Score 1) 25

Let's put it like this.
  • Natural Gas accounts for 12% of Germany's electricity generation in 2025
  • Wind accounts for 30% of Germany's electricty generation in 2025
  • Solar accounts for 19% of Germany's electricty generation in 2025
  • Biomass accounts for 8.5% of Germany's electricity generation in 2025
  • Lignite accounts for 16% of Germany's electricty generation in 2025
  • Hard coal accounts for 6% of Germany's electricity generation in 2025
  • Other sources (Coal Gas, Incinerator plants, Oil, Hydro) make up less than 8% of electricity generation in 2025

Now you can throw around buzzwords like deindustrialization, or you can look at the actual numbers.

Comment A Stanislaw Lem story (Score 3, Interesting) 42

This reminds me of a Stanislaw Lem SF story (I think published in the "Fables for Robots" series): The Trap of Gargancjan.

Two countries start an arms race by moving their whole military to AI, and then set their armies to fight each other. But when all the robots connect to each other to create the two AIs of cosmic scale, they don't fight, but greet each other, take each other's hand and walk through the flowers. Because Space at its essence is peaceful, and war is not a cosmic concept.

Comment Re:Extrapolation (Score 1) 179

I see your comment, and I know that the same error was made several times. There are numerous articles from the last couple of decades, where people point out that the exponential growth of Solar is unsustainable. Here we are in 2025, and the growth still is exponential (and has been since 1992). You have to bring up really good arguments why it should be slowing down anytime soon.

And no, I don't require every city to plaster its roofs with Solar. I just want to point out how much people underestimate the potential of Solar, because they totally underestimate the amount of energy the Sun actually provides.

Lets say, we are able to capture 20% of the Sunlight reaching the ground (actual numbers are more closely to 25%, and research solar cells reach 45%). About 70% of the Sun light is reflected by the Sun's atmosphere. In the temperate climate zone, Sun light hits the ground on average at an angle of about 45. Lets consider rainy days, and about 10% of the Sunlight will be ready for capture, of which we then capture 10%. With the Solar constant being about 1.4 kW, that means that each square meter Solar can capture 14 Watts. A person living in a city needs about 2000 kWh per year (which not only covers domestic use, but also powering the infrastructure), and with a square meter able to catch about 140 Wh per day, each person needs about 20 square meters of Solar to fully cover their energy needs. A city like Houston has a population density of 1600 inhabitants per square kilometer, which means that for each person, there are about 600 square meters of land area in Houston. Only 20 of them are needed to power the city.

Comment Re:Extrapolation (Score 1) 179

The estimates are very rough indeed. If you do the math for any city, you will find out that just the roofs in that city provide enough space for Solar to power the city. It's not that we will run out of space for Solar very soon.

And then, you are projecting linear growth for Solar and Wind, but the actual growth rates are exponential. Roughly every three years, the amount of Solar and Wind installed is doubling - doing so for the last 15 years. In 2027, the World will install 1400 GWp, in 2030, it will be 2800 GWp. Taking your 25% estimate (it's actually more like 17%, but that moves it just into the next year), we will install as much Solar in 2045 year as the total fossil energy output today.

Comment Re:American Express (Score 0) 158

There is quite a difference between Visa and MasterCard (one type), and Amex and Discover (other type). Both Amex and Discover are essentially one-issuer-cards, either backed by American Express or by Discover Financial Services. Visa and MasterCard can be issued by any institution which has a contract with Visa or MasterCard. Visa and MasterCard are Clearing Houses, companies tasked with processing inter-bank-transfers.

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