I don’t know that processing silicon is a polluting activity. There is heat involved, and some Chinese producers are 100% solar powered for their processing. Though I’m sure bulldozers or shipps/trucks are involved in obtaining sand.

I’m not a fan of any appeals to gatekeep energy use to “just essentials” instead permitting growth that people want, and cleaning up the energy use involved.

The difference is that the electrolysis can be done at producer convenience. Sometimes wholesale electricity prices (midday due to high solar penetration) are negative or ultra cheap. Transporting H2, even by truck, can be cheaper than the US typical 8c/kwh electric transmission charge. For many areas, enough solar in winter has 3x more summer production and essentially unusable. A balance of solar and H2 produced in summer, can provide the cheapest necessary energy for winter. An alternative is summer exports with winter imports.

Batteries alone are also subject to curtailment, or not enough charging in winter. H2 can be stored at $1/kwh, where a pipeline is free transmission of withdrawals different from deposit locations. The energy efficiency round trip is less important than the $ efficiency of energy delivery.

The expense part gets taken care of with OP’s solar prices. Battery costs help too.

The case for an H2 economy is one entirely based on Green H2 made from surplus renewables which are needed most days to have enough renewable energy every day.

That gas companies know how to build pipelines, distribution, and make metered gas sales to customers is a path for them/employees to remain useful without destroying the planet.

Commercial vehicles has legitimate benefits of lower cost from H2 FCs than batteries. Quicker refuel times. Aviation especially benefits from redesigning planes for H2 for the weight savings. Trains/ships need the power/range. Trucks/cars can use the range extension, and could use H2 as removable auxiliary power for extended range.

Those vehicles can also charge the grid, and as hybrids, EVs or grid can be charged from static H2 FCs. For building energy, a FC can provide the usual fraction of domestic hot water from its waste heat. The electric monopoly problem is an opportunity for both producers and consumers to bypass their high rates and fees. Ammonia and fertilizer is traditional use for H2. There needs to be a carbon tax to move away from giant fosil H2 plants powering next door giant ammonia/fertilizer plants.

Hydrogen electrolysis is just one form of electro chemistry. Other fertilizers can be made from simpler versions of the process. It’s not so much that H2 is essential in unlimited quantities, it is that electro chemistry is possible ultra cheaply when there is an abundance of renewables that provides enough energy every day to power their locality. H2 is special as a chemical for being transportable/convertable as mobile or other elecricity/heat.

HVDC is much more expensive than Hydrogen pipelines, which doubles as storage and transmission, and can provide continent wide resilience, even when local renewables provide much cheaper power when it is available than either long distance electric or H2 power.

there is some nuclear tech that can use nuclear waste as at least part of it’s fuel

Those are less competitive, and salt reactor attempts have historically caused terminating corrosion problems. The SMR “promise” relies on switching extremely expensive/rare/dangerous plutonium level enriched fuel, that rely on traditional reactors for enrichment, for slightly lower capital costs.

And cheaper solar and batteries permits cheaper Hydrogen which provides unlimited and 100% resilient renewable power, and still cheaper than nuclear.

Batteries can be containerized in modules, with a turnkey connection that remains mobile. Solar can use those containers as support structure. Hydrogen electrolyzer/fuel cells can also be built in same containers.

Also the budget and timeline is always understated, because otherwise government could withdraw funding if they don’t sink a little more cost into the budget every year.

It is very poorly implemented. “Builder grade” solar panels in a “smallest compliant” configuration with no concern for architecture to benefit from solar takes place. Builders are intentionally putting the shittiest solar to reduce value of the homes they build so that they can complain about the policy.

Manufacturing photovoltaics takes a huge pile of chemicals that need to be handled properly to not cause any harm to the environment

Source for this? Cadmium is exclusive to 1 US manufacturer.

When panels were 30c/watt, projects at $1/watt in EU and US happened. 70c/watt was spent on labour, copper, support structures, and grid connection equipment. All of those can be locally produced, with possible exception of last item.

At 6c/watt, that is over 90% of power projects are local economy boosting instead of 70%. It provides cheaper energy that is useful for industrialization and cost of living benefits too. US tariffs on solar are entirely about protecting oil/gas extortion power instead of a $10B solar production industry that needs fairly expensive support.

Solar imports does not cause energy dependence. You have power for 30+ years with no reliance on continuous fuel supplies. Shoes and apparel is a $450B industry in US. You need new supplies every year, and it makes much more sense to secure supply in that industry for war on the world purposes.

The feminism-oil complex

Building interstellar spacecraft requires advanced automation. Nuclear energy has obvious weapons uses. If there is higher density energy than nuclear, to power spacecraft, then it too can be weaponized.

If they’d need our help, it could only be fighter jets, and they’d need a capacity to hover in the enemy atmosphere, with a space ship large enough to act as an air strip. You can’t drop tanks in the middle of nowhere without fuel and other logistics.

ahh… the “Ukraine success formula”. I don’t think Taiwan leadership is as “strong” as Ukraine’s to suicide the country for US diminishment ambitions. About 80% of Taiwan public opinion favours a versions of status quo.

The natural alliance of any Asian country is with Chinese trade. Especially in tech, where Chinese market is 5x that of US, and Asian market larger than the hegemon colonial universe. Sure, countries want independence, but prosperity comes from peace and trade. The US has to spend a lot to “shit disturb” the region.

They’ve made themselves effectively uninvadable because doing so would be an absolute catastrophe for everyone else, including the aggressor.

The best part of global trade is peace it provides. There is a limit to how aggressive the US can be to China, including its Taiwan proxy, before the US and Taiwan become useless to rest of world. But keeping tech out of China is like the drug trade. There exists a nominally respectful of US country willing to turn a blind eye to smuggling/cut outs, and US is forced to buy nominal respect. China also is heavily investing into a delete America program that will eventually achieve success/parity with Taiwan, and with Huawei, seems ahead of schedule.

I thanked you for explanation. OP did not suggest that as an explanation.

ok. I’d suspect spy agency back doors if the feature was unannounced. If it was an announced feature, then that is reasonable explanation.

Speculation is that ios 18 is communicating with other phones while locked to determine security. This can more likely be a NSA/US empire backdoor than a user protection feature. Lowly police systems are just not on the “hacker list”. One way the backdoor could work is that if a “NSA/Mossad list phone” is present, protect the other phones, unless the phones are in an NSA/Mossad secure facility.

Yes, Before Oct 7, seemed to be a sure thing vs an insurectionist. But after, Trump got all of the money.