Youtube comments of (@EbenBransome).
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This story is repeated of just about every WW2 era engine being examined by another manufacturer, it's so old it has hairs on it whether it's Pratt & Whitney, RR, DB601, Merlin or whatever.
Those engines were made with fixed jigs and tooling rather than CAD/CAM/CNC. Making the jigs and tools, providing the sharpening and adjustment data etc. only makes sense if you are tooling for large numbers. Bombing factories in WW2 was so imprecise that it was rare for tools and machines to be hit, and in any case there would typically be multiples on the production line.
The cost of doing the metrology on a DB601 crank, then feeding it through to the program and tooling, would also be uneconomic for a single crank. Making it from billet would involve a great deal of machining, forging it would add to the tooling cost. You would also probably need to have details of the alloy in use and its heat treatment, which would involve testing the sample crank in different places for hardness, ductility and modulus.
The 1940s engineering was as good as it could be but today we could easily design and make better engines - the reason we don't is that whole economy of scale thing, no new piston aero engines because the production volume wouldn't justify the sunk costs before production started.
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During WW2, US manufacturing was excellent. What changed?
Well, one thing was who was doing a lot of the manufacturing. It was mostly women doing the work, and they knew lives depended on doing it properly. Then after WW2 the men came back and most of the women were kicked out. You've ended up like the UK - individual craftspeople make good quality stuff but it is expensive, volume stuff not so good, eh, Ford, GM, Tesla, Boeing?
You need Eisenhower 2. Tax the rich, invest in training, infrastructure and automation. Personally I'd put big taxes on advertising; there is too much advertising so people have to spend more money to be heard and so it becomes a spiral.
Problem is, what you've got is Reagan 2. Tariffs are a tax on the poor as the rich don't notice them. Education is regarded as a waste except for the master class (Plato anybody?). Advertising is part of the land grab on "free speech", originally intended as ensuring you could criticise politicians and the government.
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People say this about balance but it's static balance, and engines are supposed to revolve.
The weakness of the inline 6 is that cylinders 1 and 6 are the same phase but fire 360 degrees apart. This means that the crank gets a kick at opposite ends every revolution, causing a reversing twisting force. At certain frequencies the crank will resonate, and if it keeps going at that speed the resonance can quickly become destructive, taking out the main bearings.
It can be reduced using a harmonic damper, but the other answer is to make the crank so stiff that the first resonance is above the highest RPM.
If you look at Idocars this weekend, Eric is dismantling a Lexus engine and you can see how enormous are the crank and rod bearings, since Toyota went for stiffness. Not a cheap engine.
The inline 4 is less smooth but the crank is 2/3 the length which means the twisting force is less of a problem. The inline 5 has no pistons 360, or even 180, degrees apart, so management of twisting forces is easier still.
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This may be so but some European and Scandinavian countries retain a monarchy - Norway, Denmark, Sweden, Spain, Belgium, Netherlands - and are not noticeably less democratic and progressive than their neighbours. The Greek monarchy was abolished by a military junta. Several countries in SE Asia are monarchies - Japan, Thailand, Bhutan. The job of the king of Bhutan is to maintain religious tolerance and uphold the Constitution, so Musk wouldn't qualify.
The argument by sociologists of religion is that having a President with executive power is all too likely to lead to an autocracy (as seems to have happened in the USA). A non-political head of state who cannot be removed by party politics deflects the aura of power that surrounds presidents, so Prime Ministers can never get the same combination of political and hero-worship as presidents, avoiding autocracy.
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I suspect a lot of it depends on where you live. If there are plenty of charging points, you have a driveway, and solar panels, it's a no-brainer. If you live in a terrace with on street parking only, street chargers that deliver about 1.4kW and you have to visit a fast charge station frequently, not a good idea. Most people are not electrical engineers and didn't understand that.
Back in the 2000s boom, a lot of people bought narrowboats. They seemed to imagine they were a kind of water caravan. A lot of them lost a lot of money then, too, along with the people who bought RVs. We had an office near a place that sold them, and they were sitting in the yard in some cases for years with the asking price slowly dropping. The yard wasn't run by idiots; they didn't buy them in, they hired out a yard space to the owners. Falling prices didn't worry them.
There's lots of status obsessed mugs.
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According to Wikipedia Badenoch's A levels were B in Biology, a B in Chemistry and a D in Maths.
Starmer got a B in maths and physics, so he wins that one comfortably.
And be careful about lawyers; my kid who is a lawyer got A* in both maths and further maths, and from a State chool at that. Some lawyers are mathematically devoid of clue, some are extremely sharp. And some engineers are hopeless at maths, but once they reach the stage of being engineering managers it ceases to matter.
She did "computer systems engineering" at Sussex, a degree which no longer exists. However, I do not think much maths would be required compared to, say, actual computer science (which is heavily mathematical).
I once had the misfortune to be working with a CS graduate of a university I won't name, whose grasp of statistics and data analysis was almost nonexistent. When I probed a bit he said "I missed most of those lectures". Conclude from that what you will.
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In the escalating runup to WW3 it is important to get the steps right. An ICBM has a range over 5000km and usually has multiple warheads. The ATACMS supplied by the US is a short range missile which releases cluster bombs, effectively a minelayer. The Russian IRBM is intermediate range, fast and ballistic (from Gk. ballein, to throw) i.e. unguided till it slows and aims close to the target. The Iranians have similar weapons and so too, we assume, does Israel. The US tends to depend on overwhelming firepower and reducing the target to a big hole, which has been their tactical approach since about 1917.
So you can read it like this:
ATACMS attack - see, we can cause destruction and deny areas inside Russia and our mobile platform means you can't stop us. And we have bigger, longer range drones than the ones we've been using to disrupt you.
Russian response - well, we have a precision missile beyond the range of your ATACMS, so if you don't want holes in Kiev, think again.
And by the way we laugh at your crappy Watchkeepers.
In the arithmetic of death and destruction it's perfectly rational, a kind of chess game.
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Baudelaire:
Je suis comme le roi d'un pays pluvieux,
Riche, mais impuissant, jeune et pourtant très vieux,
Qui, de ses précepteurs méprisant les courbettes,
S'ennuie avec ses chiens comme avec d'autres bêtes.
Rien ne peut l'égayer, ni gibier, ni faucon,
Ni son peuple mourant en face du balcon.
Du bouffon favori la grotesque ballade
Ne distrait plus le front de ce cruel malade ;
Son lit fleurdelisé se transforme en tombeau,
Et les dames d'atour, pour qui tout prince est beau,
Ne savent plus trouver d'impudique toilette
Pour tirer un souris de ce jeune squelette.
Apart from the fact that Trump really is très vieux, doesn't it hit the right spots?
Updated translation
I'm like the king of a golf resort,
Wealthy but impotent, immature and very old,
Who despises the sucking up of his advisers
And is bored with anything that needs attention.
Nothing can cheer him, neither golf nor Adderall,
Nor people dying before his balcony.
The ludicrous pronouncements of Elon Musk
No longer amuse this cruel invalid;
His bed, plated with gold, becomes a grave;
The female staff, to whom every boss is handsome,
No longer can flash their bits enough
To get a reaction from this yellow skeleton.
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@HaydenCyclist That's conspiracy theory rubbish as you ought to know.
Cambridge was actually started by some scholars who didn't care for Oxford. They headed East to Ely - where the Bishop told them there was lots of local flooding but he had some higher ground further south which they could have. So, they started their university at Cambridge. It was already post-mediaeval, it was not a seminary (though in those days you had to be in Holy Orders to teach, that was imposed) and as for mystrical secret knowledge, I think you're talking out of the wrong orifice.
As for the rest of it, the IME was founded by Stephenson (not a graduate), and its head went to Leeds, Tempere, and then did a PhD at Cambridge so you got me there. The work she did there was on improving aluminium alloys, a subject dear to me personally, not exactly involving pentancles and black candles. The head of the ICE did her PhD at UCL. I could go on but why bother?
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I decided it was time to retire when the boss decided it was time to enter the US market. Having worked for a US corporation for years, I knew that large US companies are exactly as Shakespeare describes them: the big ones gobble up the small ones. They are also mostly intensely litigious and greedy.
Autonomy was acquired because the CEO of HP, Léo Apotheker, came from SAP (a software company) and wanted to turn HP into a software company. For those who don't know, HP began as a scientific instrument company and was involved in PCs and mobile phones. After the (some would call it disastrous) tenure of Carly Fiorina the HP board wanted something new and took on Apotheker, perhaps not knowing that, without saying why, SAP had not renewed his contract.
Apotheker was perhaps desperate for a success for his new strategy and pushed for the Autonomy acquisition. The outcome of legal cases suggests that there was a bad actor in Autonomy but it wasn't Lynch or his partner. However, HP in doing due diligence - which they did with great speed for such a large M&A - seemed not to notice anything wrong, and Apotheker was prepared to pay 60% over the Autonomy share price, he was so anxious to get it.
Problems rapidly emerged. Apotheker got HP out of the mobile phone business - what has been described as a "remarkable decision" in view of what happened thereafter. He lasted 10 months before the Board sacked him, presumably for three terrible decisions: Buying Autonomy at a huge markup, getting out of mobile phones and planning to get out of PCs - the last of which was avoided just in time. Like Truss, Apotheker lost billions - an estimated $30 billion for HP - and exited on a $13 million cushion.
If there is a villain in this story it isn't Lynch or Chamberlain.
The fact that Apotheker is still around, and still a director or chair of numerous companies, rather puts paid to the conspircy theories because if there is anybody HP shareholders would cheerfully see fall under a bus, he fits the bill.
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@JamesSmith-qs4hx Well, you would have failed physics GCSE.
Energy cost consists of acceleration, cruising and braking. The energy needed to move a car a given distance depends on speed and aerodynamics, due to wind resistance, friction, power source efficiency.
An EV is about 30% more massive than a petrol equivalent, so it takes 30% more energy to accelerate to (say) 60mph.
At this point both are using the same amount of power to maintain speed, so the mass makes no difference.
During braking the petrol car simply heats the brakes, but the EV recovers about 40% of the braking energy using the motor as a generator. So overall, it doesn't use significantly more energy. A rough calculation suggests that our EV does the equivalent of 40-45mph if it was a petrol car, which is about the same as our last petrol car which was similar size.
The electric drive is overall about 75% efficient including charging and battery loss while a typical petrol car is about 30% (unless it's an aggressive driver which can easily get it down to 20%).
But then there's the energy source, which in this country now is quite dependent on renewables and nuclear, so overall the EV is creating much less carbon dioxide (and zero NOx and particulates, which is important if you live in a town).
As a net generator of electricity (solar) our carbon footprint for electricity is negative.
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Yes, Christians love colonisation, genocide, internecine strife and world wars.
*Colonisation of the Caribbean, North America, Australia and parts of Africa.
*Genocide in Philippines, North America, and during WW2
*Internecine strife in Albigensian Crusade, 30 Years War, English Civil Wars, Northern Ireland.
*WW1 between Christian states.
**WW2 between Christian states as well as against Japan and USSR.
What a record of peace and love.
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I recall (I hope I've got it right) that at one point Mercedes basically sacked a whole load of their dealers - I remember the one in Bath closing, not that long after I visited them and they were quite rude to me. They then started from scratch. The last time I visited a Merc dealer - the newer one near Bath - I had a very interesting conversation with the sales guy while my wife was having a test drive. He'd been working for another dealership for some years and taken the opportunity to move to Mercedes because of the superb customer relations training you got. The technical stuff was fine, the product knowledge, but learning how to gain and keep customers was what it was about. (We did buy the car, but my wife had been sold on it before I talked to him.)
JLR probably needs to do the same. Recruit a few out of work actors to go round and be prospective customers, record the conversations, then swing a big axe. New dealers, new Jaguars.
(by the way, just being weird, I actually like the typeface of the new logo. Chinese buyers won't clutch their pearls over whether the G is upper or lower case anyway. Having the colours those of WW2 recon aircraft was also an amusing touch to those of us who know our history - pink for dawn and sunset flights, blue for summer daytime. A car that looks like a P-51 fuselage in side view is quite appropriate.)
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@givenfirstnamefamilyfirstn3935 We were successfully stopping them from getting hold of the nickel, chrome, cobalt, manganese, tin, silver and so on needed to make engines like the Griffon. They did a lot with less.
As a side note, people did wonder why the US invaded Morocco, so far west, when the focus was on northeast Africa. The answer, top secret at the time, was that Morocco had big deposits of copper, nickel, cobalt and manganese. And that, children, is how you win wars.
By the end of the war they were having to insulate wires with woven cotton, and they were even short of materials for spark plug insulation.
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Herringbone gears were extensively used in marine turbine reduction gears which are basically the same as the ones on an EV, but bigger.
The problem with herringbone gears are that they will never be perfectly aligned until they wear sufficiently, and not perfectly even then, meaning that first of all there will be some oscillating axial forces as teeth on both sides don't engage at precisely the same time, but second, regular oil changes are needed until the gears wear in, and that's expensive.
In the early days of marine gears there were failures until it was realised a large settling tank was needed for the oil, and magnetic traps, to remove the wear particles. Even filters were not fine enough.
Where the power and axial load permits, a single helical gear can avoid this problem, the teeth become polished rather than wearing.
Ball bearings are not more efficient because they always have some sliding at the contact line. A correctly designed taper roller has no thrust on the roller ends, and the contact is pure rolling.
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£360 at 10p a litre is 3600 litres. If you can actually average 60 litres a minute that might work for an artic but not cars.
Assuming a more realistic 3 minutes per car and even averaging 30 litres, that's £60 per hour.
The average uK mileage is about 9000, so around 1200 litres/year, which means visiting a fuel station on average once a week.
However, calling a fuel station a "community hub" is a bit odd.
Where we used to live someone decided to put a Budgens + fuel station on the bypass. I would say most of the cars there bypassed refuelling and went straight to the shop. A Subway failed, a Greggs succeeded. And where we live now, which is an "urban village", we have ten shops, no fuel station, and constant problems of too many people trying to park.
In short, things will evolve.
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One of the things that did for Hitler was the way his immediate circle created private empires in competition - the Luftwaffe, the SS, the civil police, Speer's production system. The result adversely affected their efficiency. One reason the Luftwaffe became so weak was that the Army was conscripting skilled workers from the engine plants and throwing them away on the Eastern Front, for instance.
We can assume Trump's lot will do the same, because they are temporary allies in pursuit of personal power (like all right wing governments).
How long before whoever ends up running the DoJ starts using it to take down political opponents (as Beria did)? If the so-called DOGE department ever happens, how long before it starts putting taxpayer money into private slush funds?
In this country, a political plonker (Eton and Oxford, of course) with a history degree, named Jacob Rees-Mogg, was put in charge of a department supposed to increase government efficiency. His sole work for it was going around leaving post-it notes on the desks of people working from home complaining that they weren't in the office. Sounds like the kind of thing Musk would do?
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In Purgatorio, Canto 16, Dante discusses good and bad government. His character says:
"Onde convenne legge per fren porre;
convenne rege aver, che discernesse
de la vera cittade almen la torre."
Therefore the laws were needed as a brake (i.e. curb on bad men)
And there is need of a king who can at least make out the tower of the True City."
Trump, Vance and Musk reject and ignore the laws, and have no higher goal in mind than their own power and wealth.
If Vance is correct in saying that Europe has not invested enough in its security, he is saying it for the wrong reason: because we are in this situation due to the US attempt to take over the world, starting in 1990, and using Europe as a tool. Without NATO in the post-1990 era, without the US bases, Europe could have Europeanised Russia, to the benefit of everybody but with a great relative reduction in US power.
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None of these are EVs I would ever consider buying, they all have some major downside that keeps them off the list. Air cooled batteries (obsolete tech), high price for a brand that your fellow bankers won't recognise, or one just not associated with expensive cars. And then there are things like the Taycan or the Q8, bought by people who usually obsess over noise, or capacity of the engine, or position on a model pecking order. In my experience there are three basic types of Porsche buyer: the German who does high Autobahn mileage (one guy I encountered was commuting 50 000 miles a year), the engineer, and the status freak. The first group won't buy a Taycan because it doesn't do what they need, the second group won't because they can't maintain it themselves, and the third group live in a world in which all their friends sneer at EVs anyway. That leaves the people with lots of money who buy one for the experience and then discover that once you've played with all the bits it just becomes normal. And those people don't buy second hand.
I did see a 2015 Leaf on the road this morning but most of it was Hyundais, MGs, BMWs and the odd Mokka, with one Model 3 from 2019. All practical company cars.
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Surely the point is that neither Badenoch nor Farage have ever achieved anything remotely positive in their pointless, narcissistic existences?
And that really is the key metric of the far right: all negativity.
When did the Conservative Party last have a leader who had done more than move money for people, write columns or make speeches?
Heath had perhaps the most distinguished record of any postwar PM other than Churchill - an early anti-Nazi, anti-Fascist, artillery officer in WW2, musician and sailor with friends in other parties, who stood up to Farage's predecessor Powell, but was sabotaged by the unions.
Thatcher reportedly helped put the air in Mr. Whippy, and sensibly married an oil multi-millionaire to further her career.
Major was decent enough and did his best over Europe and the economy, only to be sabotaged by the likes of Deadwood and Bonehead.
The party preferred - just - PR man Cameron over David Davis who actually was successful in business before going into politics.
They then had the nonentity May, the featherweight Johnson, the disastrous Truss and the unreal-economy Sunak.
And without having remotely learned the lesson, they chose Badenoch who had risen without trace like Truss.
Is it deathwish? In this case electing a puppet so the corruption can proceed unchanged doesn't apply as she isn't PM.
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It is literally a 1990s car - created in 1993 from the Ukrainian SSR on the collapse of the USSR. It was never a Warsaw Pact country.
I have enormous sympathy for the Ukrainians who suffered deeply from this, but some of the blame has to be laid at the feet of Ukrainian oligarchs who decided to go for independence. Ukraine was as corrupt as Russia but the oligarchs thought they could get a better deal from the West. For themselves. Corrupt as Russia is, Putin did reduce corruption somewhat in the early years. Ukraine never had a Putin and until the war, Zelensky was the public face of an oligarch.
The fact that Trump is a greedy, amoral, possibly psychopathic white supremacist seeking world domination doesn't alter the fact that millions in Ukraine have been displaced who, had the war ended quickly with the overthrow of the Zelensky government, would not have been. People still talk about Pétain as a traitor, but there is no doubt that his settling with Hitler in 1940 saved millions of French lives. If Trump manages to find a way to end the war, even with Russia holding Donbas and Crimea, people will be able to return home and rebuild. If Ukraine wins, many Russian speakers from Donbas will never be allowed back.
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@johncunningham4820 Assuming a half way decent production run, there are no economies of scale from two crankshafts because you are still selling the same number of bikes.
To add a second crank you need the crank itself along with its machining, a second set of bearings, a larger crankcase with more bearing bosses, and an extra gear. Now compared to a typical crank gear, the two gears to join the cranks must be bigger because they have to span the distance between the crank centres, whereas in a typical geared design the crank gear is smaller than the clutch gear. Then you need a clutch reduction gear. So that's two additional large, expensive gears.
There are also costs associated with the ignition system.
A V4 on the other hand has a slightly wider crank than a parallel twin, with the same number of main bearings, gears etc. It is almost as narrow as a square engine, shorter, and supplying air is somewhat easier because there is more room around each cylinder head.
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@katrinabryce I suspect I've hd a bit more to do with hazardous chemicals than you have. 50 years ago I got pneumonia from a sodium and water hydrogen explosion, never again!
Yes lithium reacts with water to produce hydrogen. However when a lithium battery starts to burn, what you are mostly seeing is burning electrolyte and separator. Immediate dumping in water drops the temperature.
The first lithium batteries had solid lithium in the anode which was dangerous. The invention of the carbon anode largely fixed that.
The lithium is stored in the electrodes and isn't immediately available to the water, so the reaction rate is limited unless the lithium melts out. Which cooling it with water is intended to prevent.
Unlike sodium or potassium, lithium doesn't normally self-ignite on the surface of water. If it is producing hydrogen, that too needs a spark or high temperature to cause ignition. What's more, hydrogen diffuses very fast, so ventilation gets rid of it quite rapidly.
In short, the way to deal with a lithium battery fire is to get it into cold water as quick as possible, keep the water coming and ventilate, whereas with an oil fire you need to exclude air and not apply water because the oil simply floats on top of it, and it can make the fire spread.
Solid state batteries are regarded as the long term answer because they do not contain the flammable electrolyte. Dealing with them would be basically like dealing with a "normal" fire - exclude air.
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Something not widely understood:
Back in the late1960s (when I started working) there were a lot of simple, manual repetitive jobs. I had a vacation job with a pharmaceutical manufacturer, and before I started the chief chemist gave me quite a lecture. He said he had had enough of students who looked down on the line workers. What they needed for these jobs was people - mostly women - with IQs low enough to find their jobs just difficult enough to need some concentration, but not too much. Say around 85-90. They kept them happy with little rewards, gave them good quality work uniforms, and basically the goal was to send them home at the end of the shift feeling they had accomplished something. In another world they would be knitting things for people. They were valued employees.
I learned that lesson.
American employers tend to be abusive of their workers because they did not.
Unfortunately the media has given people unrealistic expectations - and produced a generation who overestimate their own abilities, without having the attitudes that could fit them for roles like that.
If your parents were peasants scraping a living from growing rice, vegetables and chickens, you probably have the attitude that could make you a happy employee in that kind of work. Your children may benefit from a city education and go on to achieve more. But if your parents were in the US and got better paid than the rest of the world for a given job, and then you had to pay for that with high house prices and tuition fees, you would be very dissatisfied. And I think this is what is happening.
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@MrMatt531 " you’re welcome for all our medical innovations. Ones your nation doesn’t create"
Well, it's true we didn't invent the wallet biopsy or the electronic credit check.
However, the UK was the first to develop an affordable covid vaccine, the first to work out the structure of DNA which has led to many medical advances, and the first to sequence the human genome so one of your billionaires could not patent it and make Musk look poor. The University of Cambridge earns billions of pounds every year from its medical research and biotech companies (I know because I'm a graduate and get the data regularly). And one thing our NICE repeatedly does is check US studies and debunk expensive new treatments that actually don't work - but which you guys have to pay for.
As for extreme wait times, from getting worried about a skin lump to surgery to remove it took all of 5 weeks, and my wife had to wait about a month each time for hip replacements. Total cost? Car fuel to and from hospital. Yes we've paid into the British system all our working lives. We pay about as much as Americans do in Federal tax that goes to the NIH, veterans, Medicare and so on. But then you have to pay for insurance and "co-pay" on top.
I won't say Americans are unbelievably ignorant, because I do believe it, since you voted for Trump.
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The Conservative problem is the same as the Republican problem - the headbangers drove out all the sensible people and now they have nobody who understands how to unite rather than divide.
They preferred David Davis over Cameron not realising Cameron would run the government with a very small Etonian clique (and a couple of oiks like Osborne).
They eliminated Stewart and Tugendhat, both of whom would have been "safe pairs of hands."
In the past they have chosen Hague, IDS, May, Johnson, Truss ffs, and then a banking apparatchik.
In about 1970 I was asked if I wanted to join the Young Conservatives. I said that I really didn't want to get into student politics. "Oh", they said, "we don't do politics. No ideologies here." And that is the lesson the new Cons, with their two right wings, have forgotten.
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