Formerly u/CanadaPlus101 on Reddit.

  • 4 Posts
  • 132 Comments
Joined 2 years ago
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Cake day: June 12th, 2023

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  • Yeah, this is the way.

    Even if you wanted to start an uber-ethical fund, you’d run into problems with what that actually means. For example, would Seal Clubbing Inc. be ethical as a traditional indigenous business giving work in depressed areas, or unethical do to producing animal products? Answers will very heavily from person to person. That’s why, in practice, what exists is funds that avoid the most controversial businesses and give everyone else a pass.

    BTW you should probably spoiler that last bit.








  • There’s three factors at play: depletion of the easiest reservoirs, sociological changes and increasing feasibility of competing technologies. The answer is going to depend on which things you’re assuming away.

    Like, in this parallel modern world, is everyone using EVs, or horse and buggy? Early cars sucked - you basically had to be a mechanic just to own one, on top of the low speed, range and features - but they beat the shit out of no cars. It’s also worth noting petroleum products were burned in lamps first, so there was already a limited infrastructure for cars to use. If all the easy oil still isn’t there I doubt we’d bother, but with those gushing deposits of sweet crude just below Texas that used to exist the process would be much simpler.

    The sociological one might be the easiest to answer. There’s plenty of heavy industry that’s nasty to be around, oil isn’t unique or even the worst offender, so that’s fine. If it’s the horse and buggy world people aren’t going to tolerate tons of steel whizzing them by with no enclosure, though. Most of that kind of thing was outlawed in the mid 20th century, but cars were just so ubiquitous. So, by that count, gas powered trains would be the application.

    There’s a chance the greenhouse effect would be predicted and managed actively from the start, because science has come a long way. I’d guess urban air pollution regulation would end up in about the same place.


  • Can you link one? A quick look gave this:

    A recent study by the USGS estimates that there could be millions of Mt of natural hydrogen in accumulations in the Earth’s crust (Ellis and Gelman, 2024). However, there is a great deal of uncertainty associated with this prediction and the model does not evaluate the potential size or distribution of hydrogen accumulations. Most of this hydrogen is likely to be in accumulations that are too deep, too far offshore, or too small to ever be economically recovered. That said, even a small fraction of the estimated amount of subsurface hydrogen could potentially meet all global projected demand for hundreds of years. Consequently, the key to understanding geologic hydrogen resource potential is to examine the geologic factors that affect the potential to form accumulations.











  • Well, exactly, in the context of OP’s question we’re doing “spherical cows in a vacuum”. In reality, no orbit is truly elliptical, either. Then again, if you use a practical measure for a practical situation, they’re close enough to elliptical for most space travel purposes, and definitely stable far away from an atmosphere.

    General relativity can also cause noticeable departures even in our solar system, like the precession of Mercury’s orbit. In extreme situations it can get really different - gravitational waves remove energy, and around a black hole there’s a region where escape is possible but not any orbit.