580 karma · joined September 30, 2014
Edit: slight rewording
If you mean autonomous loitering munitions, they are are basically short lived mines in the sky. We had those in the sea for more than a century, they didn't render seas unsurvivable for ships. And if you think loitering munitions are cheap vs their targets, wait till you hear about inflatable heated "tanks" that such a munition won't be able to distinguish from an actual tank.
Indeed, armies are paying smart people to think about those issues. You can notice that those smart people don't plan to get rid of ground armies, instead they build jammers, lasers, and automatic guns. The original claim was about ground war being impossible anymore because of drones, which doesn't really match up with what those smart army people are doing.
That's just not true. Rheinmetal has their Skynex, everyone and their dog does lasers, and jamming is basically free. Phalanx (and its land equivalent) is also a thing, updating their targeting doesn't seem insurmountable.
I'm not aware of any "hot zones" lately where a war was even close to being decided by drones, much less everyone being forced underground. Even in Ukraine with absolutely hapless Russian army drone ops are mostly harassment. For an advanced army drones just aren't that big of a deal really, there are plenty of detection, disablement, and destruction modalities available.
[1]: https://www.statista.com/statistics/1265354/area-burned-by-w...
Effectively this statist position boils down to "screw you, I got mine", which is generally considered unethical. The only alternative is to run forward as quickly as we can, fixing things as we go.
By the way, would you consider "undoing" ozone-destroying refrigerants by banning/reducing AC and fridge use, or would you prefer a technological, "positive" solution of ozone-safe refrigerants?
According to the logic of degrowth, they should be forced to live in conditions that allow for net zero total emissions of the country they live in. If anything, it should be easier for them because they're a unitary dictatorship, so can degrow by edict. I can't see how not focusing on China in that regard can make sense, they're emitting more currently, they are rapidly increasing their emissions (unlike the US), and they have a great potential to increase it much higher because they have lots more people. Therefore any degrowth strategy should be first and foremost applied to curb their emissions, yet somehow the conversation is always derailed into useless per-capita emissions that do nothing to the planet.
People living off grid still continue to consume the products of grid-enabled industries, from manufacturing to farming to logistics to infrastructure. Heating/cooling and lighting a cabin is much more trivial than paving a road coming to that cabin, feeding its inhabitants, building solar panels for them, or ensuring dense enough population to make research and manufacturing viable. In fact, we don't need to extrapolate minor part of personal consumption to the whole society, we have aggregate energy consumption numbers.
"Market forces" can't generate electricity on their own. Instead of taking the bottom-up view, fraught with wishful thinking and unstated assumptions, why not take the top down, working from the potential generation capacity under ideal assumptions? That's exactly what the paper I linked did, and the results are… not great for 100% renewable
Also, "good grid" means "perfect national transmission", which is a wildly optimistic assumption. The US is currently split into multiple grids, with ties being able to handle less than 1% of their generation capacity.
Moreover, that's just the US. Here is what the link has to say about countries less blessed with landmass and latitude:
> Indeed, in smaller countries, substantial gaps (>30% of demand for >20 h per year; pale orange curves in Fig. 4) remain in systems even with 12 h of energy storage and annual generation that is 3x annual demand.
Or this, directly referring to extensive overbuilding required to meet demand:
> For instance, historical solar and wind resources data in Germany reveal that there were nearly 2 weeks in which dispatchable generation had to cover practically all of the demand because of a period with very low solar and wind power availability (called “dark doldrums”)27. Although with vast enough wind and solar capacity it might still be possible to meet demand in all hours, the required capacity increases exponentially after a point that depends on the renewable resources of that country, and it is this geophysically-dependent point that will largely determine the cost-effectiveness of highly-reliable, renewables-based electricity systems.
[0]: https://pubs.rsc.org/en/content/articlelanding/2018/ee/c7ee0...
The simple reality is that there are a lot of people and most of them are very poor by Western standards. There are almost 8 billion people on this planet, and only 1 billion of them live in the West. There will most likely be 10 billion people, with almost all of the extra 2 billion being born in the developing world. Those 8 billion people's living conditions are abysmal compared to developed world, so they want to improve them, which means increasing their energy consumption. 8 billion people is 8 times more than 1 billion people, therefore even if it's somehow possible to "degrow" Western economies to the level of consumption of 1970s and force the developing world to stop at that level, that's still a severalfold increase in overall carbon output.
If we unshackle ourselves from the reality of international politics, let's assume that instead of waiting for the developing world to catch up we somehow redistribute all wealth equally and freeze it at that level. Ignoring all beneficial effects of wealth concentration (you can't build five smaller semiconductor plants for the price of a one big one) and previous wealth expenditure (infrastructure already in place is worth a lot of carbon), the resulting average quality of life on this planet will be closer to favelas than to whatever even the most ascetic green activists would be happy to accept. And we actually need to reduce that level, not just abandon overseas holidays.
Of course, we can't ignore international politics, so any measure that fails the MAP test (can you convince Modi, Assad, and Putin to implement it?) is at most a minor respite, not a solution. Something tells me that it would be hard for green activists to convince those leaders to deliberately reduce their citizens' living conditions and, for two of them, abandon their biggest export revenue streams.
I don't know what's going on in people's heads when they talk about "degrowth". Most of the time I brought up [0] the discussion switched to per-capita measures and emotional arguments about guilt of past emissions, as if our atmosphere cares about Americans being especially polluting per capita when there are 20 times more people polluting somewhat less but increasing their pollutions every day. The easiest explanation I can think of is a combination of despair ("but nothing else would work"), desire for "simple" solutions ("just reduce consumption" sounds simpler and less tradeoff-y than, say, nuclear), blindness to the world outside of Western bubble ("we just need to do our part, how hard can it be not fly to vacations"), and a quasi-religious notion of carbon piety. It's disheartening and I strongly believe it's hugely disruptive to productive efforts to combat climate change.
[0]: https://ichef.bbci.co.uk/news/976/cpsprodpb/1711C/production...