The cars I mentioned use 0W40. A car with shorter oil change intervals than 10K is probably not marketable where I live. Given that the average total time on the road is about 18 years, and the average yearly mileage about 10K, this would mean that the average car is driven for 180K miles with those long intervals.

Because it was a leasing car, and after 5 years, the leasing contract ran out and could not be extended. Colleagues of mine with more road trips put more than 125K miles on their cars before their contracts run out. And the local mechanic who was doing the oil change (five times during my run) was not laughing at all, because it was his everyday work. In fact, I went to the mechanic whenever the car engine light came up and demanded the oil change. Only one time, when I came in after 17K miles, he was a little wary because I was postponing the oil change for too long for his taste.

In most of the world, 10K oil changes are the norm. My last car had 15K oil change intervals, and got 60 mpg. Never had an engine problem. As this was a company car, I had to return it after 90K miles. Engine was an Volkswagen 1.6 liter TDI with 110 HP. Current car is owned by my wife, similar sized engine with similar range from Stellantis (1.6 liter HDI), 10K oil change interval, currently at 100K miles. Never had an engine problem.

I don't know what the U.S. car's problem is with those short oil change intervals. Low quality oil maybe?

It's not about IOS' market share as such. But if I as an Android user have the government surveillance app, but my somewhat richer neighbor with his iPhone does not, that begins to look very much like a wealth privilege. And in a country with many poor people, this does not bode well for the government.

When all spaces are full, you can't park there anyway, independent of the question if there are 9 or 10 occupied spaces.

Driving from Dublin to Donegal means that you take a short cut through Northern Ireland. Crossing the border is an everyday occurrence. And that border is one of the main reasons why a) Northern Ireland voted against Brexit and b) the Brexit negotiations were so complicated, as it is easier to levy tariffs on the ferries between Northern Ireland and Great Britain than between Northern Ireland and the Republic of Ireland.

But that's where most border crossings happen from the UK. It's not the edge case. It's most of the cases. For all other border crossings, you would have to book a ferry.

There is no passport control at the border of Northern Ireland and Republic of Ireland. (And between most E.U. countries).

It always boils down to the question: Does it matter?

Does it matter if you have 9 or 10 dollars, if all you want is to buy an ice cone for $3.50?

Does it matter if there are 9 or 10 parking lots if you know 5 of them are occupied, and you want to park your car?

Sometimes, 9 or 10 is a question of life and death. Are there 9 or 10 people in the burning building, and have we account for all of them rescued from the fire? Sometimes it is totally irrelevant.

Same with Dark Matter. If we want to account for effects on cosmic scales, it is really important. For gravitational effects in our Solar system, not so much.

We could also call it "apparent gravitational effects, which don't fit our models right now, but would fit perfectly well if we assume about five times more mass than we can actually account for."

No, it's Nibbler poop, as we all know.

People have a very important source of knowledge which is totally missing from AI: experience.

A person knows what "hot" means, because it has touched a hot surface during its lifetime at least once and felt the pain. A person knows how a speed bump affects the car ride, and how lemon tastes. A person knows which shape fits into which hole, because as a child, it has played the game.

Persons learn all the time by formulating hypotheses about the world and then experience how it works out.

AI totally misses this feedback. Or as my father uses to say: AI talks about color like a blind person.

The Spain outage would have happened with Nuclear exactly the same way. It was not a problem of not enough power. It was a problem of too much power, which was not absorbed by the consumers, and caused a build-up of over-voltage, which could not be dumped anywhere. When the grid automatically switched off power sources to damp the swing, it over-corrected, leading to a power loss of more than 2 GW, which then caused the shut-down of large electricity consumers. With a fat nuclear reactor, you would not have changed anything. Still, the grid regulation would have overreacted, with the same consequences.

Where I live, a railroad crossing limits the top speed of the rail to 80 mph - definitely not high speed rail.

High speed rail is always grade separated. (How many non-grade separated roads you know which allow for a high speed above 80 mph anyway?)

Contrary to common belief, Britain has not very much rain. It just happens to rain often, but very small amounts. Rome for instance gets more rain per year than London, it just gets it in some very intense rainstorms, and is dry for other periods during the year.