The Second Amendment was intended to be a check on federal power. None of the amendments were incorporated into jurisprudence about what individual states could do until arguably 1890 and not certainly until the early 1920s. Many states had laws around firearm storage for decades. In the 1830s, Massachusetts was the first among several states to generally bar carriage of firearms in public. Texas would follow suit in 1871.

The Heller decision written by Scalia was a sea change in constitutional law, but it laid down important limits that were respected in the MacDonald decision that followed soon after and which incorporated the Second Amendment as applying to states as well as the federal government. Scalia wrote that firearm law limitations were presumptively lawful, and essentially laid down an opportunity for the federal government to prohibit future types of weapons sales by preventing them from becoming publicly available. Here's what he wrote (citations removed).

We also recognize another important limitation on the right to keep and carry arms. Miller said, as we have explained, that the sorts of weapons protected were those "in common use at the time." We think that limitation is fairly supported by the historical tradition of prohibiting the carrying of "dangerous and unusual weapons."

It may be objected that if weapons that are most useful in military service—M-16 rifles and the like—may be banned, then the Second Amendment right is completely detached from the prefatory clause. But as we have said, the conception of the militia at the time of the Second Amendment’s ratification was the body of all citizens capable of military service, who would bring the sorts of lawful weapons that they possessed at home to militia duty. It may well be true today that a militia, to be as effective as militias in the 18th century, would require sophisticated arms that are highly unusual in society at large. Indeed, it may be true that no amount of small arms could be useful against modern-day bombers and tanks. But the fact that modern developments have limited the degree of fit between the prefatory clause and the protected right cannot change our interpretation of the right.

Scalia had no problem with regulating or even banning public availability of broad classes of weapons as long as those available to the public continued to be available to the public. In his view, existing weapons like missiles and new weapons like portable lasers could be banned because they were not "in common use." However, Scalia died in 2016, and the Court has moved to a substantially broader view than he had.

What are you going to do when Nazi Trump really ramps up the persecution? Oh right, sit back and protest and hope the government doesn't murder you all, ie just like Iran did to it's protesters two months ago.

The people who have clamored most over the last 40 years about government overreach are largely those most supportive of Trump's tyrannical behavior. However, the fastest growing segment of gun owners in the last couple of years are those on the left, with even more disproportionate growth among minorities. There are a lot of former military who are very unhappy with the direction that he's taken, too. There are a lot of guns on both sides and not nearly enough police or military to handle them all.

So far, the Trump administration's own overreach has been embarrassing enough to force them to back off. The videos of the deaths of Renee Good and Alex Pretti were bad enough, but the responses by almost everyone up to and including Trump in labeling them terrorists and declaring that the ICE and CBP agents did no wrong before we even had multiple views of what happened caused them to backpedal (even the NRA chimed in against the administration). Bovino was removed from Minnesota and demoted, resulting in him either deciding or being forced to retire. They sent Tom Homan in, and the first thing he did was withdraw half of the agents assigned there, and most of the rest have returned to their assigned jurisdictions. Noem's constant bluster and media presence have sidelined her in the administration, destroyed almost any chance of a political future and cast a permanent pall over the brutal enforcement actions under her watch. Her replacement, Markwayne Mullin, isn't much better in terms of policy goals, but he has said that he doesn't like and doesn't want the constant press from extreme actions. The GOP, including Trump, is being forced to negotiate on things in the DHS budget bill that Trump declared just a couple of weeks ago were nonnegotiable. Trump's actions in Iran have backfired, and so far, the only negotiations happening seem to be in his own imagination, leaving him looking even worse, even among his own supporters.

They're weak and they know it, and their support isn't as solid as it was a year ago. Whether this means they continue to back down or they suddenly lash out, I don't know. But if they do move to mass violence, it isn't going to be against a group of unarmed pansies entirely incapable of shooting back. I hope it doesn't come to that, because it will become impossible to predict the outcome.

Trump has issued 101 pardons in his first 13 months of office, many of whom were very obviously guilty of serious crimes and for which Trump was expecting a quid pro quo. The Cuellars are a prime example. The evidence against them was overwhelming, yet Trump pardoned them and then got angry that he registered to run as a Democrat for office in his district. And there's Changpeng Zhao, whom Trump didn't know anything about but pardoned on the idea that his prosecution was a "Biden witch hunt." We're supposed to ignore that Peng's company made the Trump family $2 billion richer a few months before.

Mikrotik has manufacturing in Europe and China, as well as Vietnam and Malaysia. Their higher-end stuff seems to be made in Europe, but that doesn't necessarily mean that parts of those aren't made in China.

I hate all of this sales pressure BS - that the instant anyone hears your name you have to try to "convert" them to sales - and I literally run a webstore.

It's all so deeply anti-consumer, and I want no part in it.

I'm not fond of Musk, but this part about SpaceX is just blatantly untrue. Falcon 9 has an enviable record, with only two full failures and one partial failure out of 619 launches. Of the 602 attempted recoveries, they've made 589 of them using 53 boosters for an average of 11 launches per booster, with at least one (B1067) completing 33 landings.

NASA has most certainly not given up on reusable rockets. They continue to plan for the Falcon line to be used, and New Glenn has some contracts with more likely coming as it demonstrates reliability. Vulcan is supposed to eventually get reuse capability (we'll see), and NASA uses that, too. Even most of the smaller rockets have or are developing reuse capability.

Tesla is a mess, Musk had to get SpaceX to buy Twitter and Grok, and Starship is clearly having more problems than expected, but SpaceX's core Falcon operations are working just fine.

For power, he will likely divert a bunch of solar panels and grid-scale batteries from Tesla.

The bigger issue is that he wants to put this close to sources of vibration, like the Tesla gigafactory that uses high impact tools to shape metal. Apparently reputable commenters elsewhere have said that these impacts, while invisible to human sensations, are likely enough to affect high-sensitivity chip manufacturing operations. Existing fabs all over the world have to take into account traffic from nearby highways, and the gigafactory will be even closer and involve sharper impacts.

He has also dismissed concerns about clean rooms in the past, saying that they're overblown, and that he'll be able to eat a cheeseburger and smoke a cigar in the same rooms that are running manufacturing operations.

He was good as an idea man for a while, but his ideas have lost contact with reality.

ASML uses the calendar year for its fiscal year, so it's the same thing.

Firstly, I see you have this notion that martian rocks must all be igneous.

You're not talking about rock, you're talking about regolith.

Depending on where the regolith is sourced

Regolith is not "sourced", it's blown across the whole planet. It's not simply "whatever the underlying strata is made out of".

But, since we are playing 'name the ignorance' in this exchange, your attestation stat perchlorate is 0.5% liberatable oxygen says 'Say i'm ignorant of basic chemistry without saying i'm ignorant of basic chemistry, and am bad at reading too.' The 0.5% statistic comes from the publication at bottom, and is the proportion of the regolith that is perchlorates.

I am the one who mentioned that regolith is 0.5% perchlorates, not that "perchlorates are 0.5% oxygen". *facepalm*

"Saying we'll get oxygen from the 0,5-1% of a poison in martian regolith, rather than bulk ice or CO2, is..."

For God's sake, learn to fucking read.

Washing the regolith to remove the perchlorate is a requirement for *any* other use of that regolith

Which is why you shouldn't be celebrating its existence. It is a problematic contaminant, not a resource.

As you have rightly pointed out, the water ice on mars is more 'frozen mud'. Cleaning the melt is going to be a necessary first step to using it *regardless*. That means either vacuum distillation, thermal distillation, or reverse osmosis filtration. Again, NOT OPTIONAL. This is necessary equipment that you need to bring, regardless.

And this just to get water, the most basic of offworld resources. And all of that equipment (especially the mining hardware itself) requires maintenance and spare parts, which impose more dependencies. And the TRL for use on Mars is low regardless.

You've gone from talking up the ease of operating on Mars to talking it down, yet your self-righteousness hasn't shifted at all in the process.

RO filtration is the least energy intensive of these.

Except, it isn't. 0,5-1% perchlorates. RO typically removes 90-95% of perchlorates. So you're down to ~500ppm. Human safety levels** are in the low parts per billion. You're five orders of magnitude off. Yes, you can purify water that far - and the more perchlorates, the easier - but you're talking an over millionfold reduction. It is not at all trivial. You're talking first RO to get it down to levels where it won't hinder bacterial growth, then bioreactor bacterial remediation, then filtration, then RO, then ion exchange. This is not some little, simple system.

** Plants can tolerate much more perchlorates than humans, but they also bioaccumulate perchlorates of exposed to them, so you have to reduce the water to low ppb levels.

The end products are clean water and perchlorate contaminated mud, and clean mud, with contaminated water.

Viola! *eyeroll*

And your "plan" for dealing with waste perchlorate doesn't just magically produce pure O2 and NaCl in the real world. First off, molten sodium perchlorate, which is what it becomes before it decomposes, is an extremely corrosive oxidizer. Exactly what are you planning to make the furnace out of, platinum? Secondly, you never get perfect decomposition. Apart from residual perchlorates, you have residual sodium chlorate, which is also corrosive, and is a literal herbicide. And your gas stream will contain contaminant chloride and chlorine dioxide, which, news flash, you don't want to breathe.

There is no way on Earth anyone would ever prefer this to just conducting electrolysis on the water that you've already purified.

It's worth noting that Nikola wasn't his first scam, either.

YOO-HOO

He's also a sleasebag who has been credibly accused of sexual assault by three women (and in general being a sex pest to many more). When a former friend (Jonny Robb) threatened to out him over it (it had been gnawing at him for a long time, and he was friends with some of the girls), Milton entrapped him (deliberately switching the topic to money, baiting him into asking for money to stay quiet, knowing that he was poor), then when he got Robb to ask for money, reported him into the police for extortion. Robb - his old friend - committed suicide after being released on bail. Milton rained largesse on local politicians, including the Attorney General's campaign. Milton was never investigated by the AG's office for sexual assault, while they arrested Robb immediately just on Milton's word.

I've talked with people online who knew Jonny Robb, and the universal answer was that he was the kindest person you'd ever meet. He had a hard life, struggled through overcoming depression and addiction, and had a lot of sympathy for others who were struggling as a result. I saw a podcast once where he was a guest, and I remember one of the topics was about a recent event where he was at a fast food restaurant, and there was a homeless lady, clearly mentally ill / schizophrenic, who was in general freaking out the guests and the staff, who didn't know what to do with her, and were probably minutes from calling the police. Robb orders for both himself and for her and sits down and eats with her, chats with her. She's having a great time, having not gotten attention like this in ages, starts joking that he's her boyfriend, etc. After they eat, he walks her out, much to the relief of the guests and staff, heads to a store and buys her a new sleeping bag and stuff. And she looks both simultaneously happy with her nice new stuff, but also terrified, and he suddenly realizes, oh shit, other homeless people are just going to steal this off her. And during the interview, he looked almost like he was going to cry when he said that.

Anyway, he's dead now.

I literally have a BA in horticulture. Regolith is NOT a good choice for hydroponics. Period. Stop trying to pretend it is one. Also, regolith has nothing to do with "shales", and it's not clay minerals either.

The closest thing to industrial hydroponics with it is using it to make rock wool (if the elemental composition is correct) - but you can also use, you know, rocks for that. Rock wool (basalt fibre) is basically air blown / centrifugally-flung lava (artificial Pele's hair) that has been spun. Rock wool actually *is* a common and effective cultivation medium for hydroponic (with the caveat that its reusability is limited, and on Earth we usually don't bother). The problem is that rock wool isn't just basalt. It's basalt + limestone/slag + binders (sprayed into the air to collect and bind the fibres) + other chemical treatments. You may be able to substitute anorthosite or similar for the limestone, but the binders aren't available, so you'd have to come up with new techniques to collect the fibres and make a "knitted" or "sintered" rock wool. As for other chemicals, the full composition of horticultural rock wool usually isn't disclosed (each manufacturer has their own optimal formula to be an ideal substrate), but you generally have to treat the fibres in various ways (as an example, for insulation, which has very different demands, they treat the rock wool with mineral oil)

The statement about bassalt fiber is not meant to be taken in a horticultural context.

"Tell me you've never been in a commercial-scale greenhouse without telling me you've never been in a commercial-scale greenhouse"

Those greenhouse tomatoes that you buy at a store out of season? They're probably grown like this. A TL/DR for you: you start out with rock wool (basalt fibre) plug trays to start your seedlings. You then put one seedling plug each into larger rectangular blocks of rock wool that have holes in the centre for them. When they're ready, you put them into a bagged slab of rock wool (usually a couple per bag), and that's what you produce from. You only maintain a small number of vines from each, regularly pruning off all internode suckers, as you have a fixed space between plants and a fixed amount of root volume so can't have them be expanding outwards (the fixed amount of root volume also means that you have to prune lower leaves to maintain balance). Your vines keep getting longer (and need to to produce more flower/fruit clusters), so when they get to the top of your wire, you incrementally slide them over until they're growing more and more horizontally. When you can no longer slide them over any more or they simply get too long, you remove the plants, toss the rock wool slabs, and start over.

And lastly, if your plan to deal with perchlorates from water is *literally splitting the water with electrolysis*, then you better stop celebrating the existence of this poison on Mars (one poison among many, it should be added - arsenic is higher than on Earth, chromium is commonly hexavalent, etc).

I've never read it. Does he have three robot daughters?

100%!

With the caveat that I'd not say lunar regolith is"like asbestos". Asbestos is unusually hazardous because it splits mainly along its long axis, so its fibres tend to get thinner and thinner over time (unlike, say, glass or carbon fibre, which tend to split transverse across the fibre). This turns asbestos into tiny needles that make it deep into the lungs, immune cells try to engulf them, fail and die, and then trigger an immune cascade in response. It's also not really the same as classic silicosis, either - on Earth we deal mainly with crystalline silica, but lunar regolith is mainly amorphous, which is less fibrogenic. It's less likely to cause long-term health issues and is less long-term stable (good), but the flip side to that is it's highly short-term irritating - not just from being fine and jagged, but also because (having not been exposed to moisture or the atmosphere) it's highly reactive.

Saying we'll get oxygen from the 0,5-1% of a poison in martian regolith, rather than bulk ice or CO2, is...

Well, it's take ;)

There is no reason to celebrate the existence of perchlorates on Mars. Also, I have no idea where you got the idea that perchlorates break down in water. Perchlorates are highly stable in water. Unusually stable relative to their high oxidation potential. It takes a lot of activation energy to break the chlorine-oxygen bonds. Which is how perchlorates long-term contaminate aquifers (even on Earth where microbes could potentially help decontaminate them - indeed, in the human body, the vast majority of the perchlorate that you consume leaves the body unchanged). Mars ice should be expected to be utterly loaded with perchlorates.

(Also, for the record, what we've found at least thusfar is not really "ice" as one may commonly think about it, it's probably better to refer to it as "permafrost" - lots of mineral grains in it)

potentially useful mineral dust to use hydroponically,

Mineral "dust" is very much what you don't want with hydroponics. With hydroponics you want a balance between aeration and water. Fine dusts offer basically no aeration. That would be a pot of rot (beyond being a health hazard to workers and consumers). Most hydroponics on Earth is done with things like rock wool, pumice, sand, that sort of stuff. So long as what you're using isn't toxic, you can use pretty much anything in hydroponics, so long as the particle size is reasonable (with a lot of flexibility, up to and including aeroponics - aka no growth medium at all - but never so dense / fine particles that the roots can't breathe).

(Different media offer different properties - coarser = better aeration but need to water more often & more vulnerable to temporary watering outages, for example. Some, like pumice and sand, are mostly reusable with cleaning / sterilization, whereas you usually don't reuse rock wool as its degradation is usually more than growers want to deal with)