Ok thanks, but are they discrete or there can exist as many ports as can be defined in the computer?

We don't have universal currencies because it would be very bad for many/most countries. One means that markets adjust for productivity, labor cost etc is through the exchange rate differences in different currencies.

If all countries shared the same currency, this "average" price will make labor in highly productive countries very cheap and labor in low/developing economies too expensive. This means super high unemployment and low investment into developing economies. The rich countries get richer and the poor countries get poorer.

As an IT professional, when you say "Network port" I think it's the physical port on the computer you plug the network cable in. E.g., the ethernet port.

If you're asking "What is a port in networking terms?" that gets asked pretty often, but the bottom line is that you have one network cable and one network address, but you can run multiple services on that connection, and ports are used to differentiate them.

So the software on the connecting side will go "Hey, I'm trying to talk to port 443" and the networking software on the target will go "hey someone's trying to reach port 443, anyone listening to that?" and a piece of software (in this case, the web server) will say "Oh yeah that's me."

To offer a third perspective, the Mediterranean countries have an intrinsically different approach to life than their northern neighbours. Trying to harness Germany and Greece together under a single monetary unit was always a bonkers idea - if you harness a racehorse and a plowhorse together, neither will be able to achieve its goal.

The mistake of the German financiers was to put the ideal of a united Europe over practical considerations.

Think of it like a big building with many apartments. The building has a street address. That is basically equivalent to the IP address of your computer.

But since there can be many tenants (services) in the same building, you also need to know the apartment number.

More technical explanation: Many services (e.g. email server, web server, file server, print server, etc.) can be running on the same computer, sharing the same network interface and therefore the same IP address.

To keep those apart, each service is listening on a different port (e.g. `25` for email, `80` for web server, etc.). When you send a TCP/IP message, you have to specify the recipients IP address, but also the port on which the message is to be received.

Ports are a logical concept. They physically use the same cable as all other messages. It's just an additional number encoded in the TCP/IP package. When your operating systems network stack receives such a message, it will read the port number and forward the message to whichever service (tenant) is currently holding that port.

Imagine a city has many pathways in and out... Leading to different cities for trading or entertainment etc.

Now imagine all these pathways are closed, you can choose to open them for access into or out of the city.

But the more you open the more likely the city is going to be attacked by something you wouldn't want in your city.

As monetary policy is a great part of sovereignity, states tend not to let a supranational organization make those deciscions for them. There is of course the concept of a universal currency (see Keynes' Bancor) while maintaining the national currencies. As this role is - for historical reasons (see Bretton Woods) - currently occupied by the US$ and there is no rival challenging the concept itself, a global currency is far away.

>The Euro is a good counter-example for why international currencies are dangerous. Countries that have adopted the euro have seen tremendous economic and political power move outside their own country as a result.

I'm going to have to disagree here. The reason Greece and Italy are dependent on Germany and France isn't the currency unit, it's that they're shit at running thier economies and then they just take bailouts and keep blaming the people that bail them out. They could get their shit together and be economic leaders, they choose not to. Blame game is just easier.

There are global currencies. USD is basically a global currency. SDRs are a global currency that logistics companies all use. Crypto will never be a global currency. It's a "gold standard" currency and too volatile. There are tokenised forms that could act as fiat, but government's need to control the printing of currency. Randos making token fiat will not manage them as well as governments. I know, I know, all government's bad, but, in reality, most are better than people like Bankman-Fried.

Imagine a giant mid evil city with walls all around and some ports that either are open, closed, locked and even hidden.

Some of these ports are dedicated to particular functions. Port 80 in for the normal internet, but there are also a lot of other ports.

Configuration a port would be like setting up what it shall be used for, if it needs to be from open and right up to hidden and locked.

Individual countries having their own currency provides powerful advantages, since the country can float its own currency against other currencies and thus provide a buffer during times of economic turmoil. Also, countries that issue their own currency can not go bankrupt, since they are in control of the amount of currency in circulation and can originate more if needed.

The Euro is a good counter-example for why international currencies are dangerous. Countries that have adopted the euro have seen tremendous economic and political power move outside their own country as a result.

Greece, famously, was brought to its knees economically by German bankers who were determined to throw the existing Greek government out of office and force the country to borrow money to meet targets imposed from outside, impoverishing the local population and forcing a mass exodus of working age people.

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Crypto isn't universal. Globally, it's barely accepted anywhere and it's too expensive to make small purchases. Not to mention the pyramid scheme of it all where it's treated as an investment rather than a currency.

And there isn't a global currency because countries want to have control over their own money and monetary policy. Would you want a financial crisis on the other side of the planet to tank your currency through no fault of your own?

Are they charging more than it costs to change? I don't think so. I think the industry will complain, but they will pay because it's easier, faster, and cheaper.

Yup in a simplified way it does. Most of the time there's a DTP specialist that controls the process before it goes to the printer. There's a few different Pantone libraries so they make sure the correct one is used and check for additional details.

It's worth noting that lossy doesn't maintain the quality of the image

From what I've gathered (lifelong glasses user) your brain can adjust for your crappy vision. It refines and fixes based on what it thinks should be there and is usually pretty good at it. When you get glasses and it no longer has to do that work (because the eye is transmitting a clearer image) it gets lazy and stops working on that refine and fix for the blurred vision. If you kept your glasses off long enough it may stay the same or you may adjust to it and think the blurs are normal because your brain is "erasing" them in real time based on what it knows something should look like.

The refine/ fix thing is a perfectly normal thing for the brain to do and it does it constantly in ways we mostly don't pay attention to (peripheral vision is a huge one for this) because it gets it right 99% of the time. The times it doesn't tend to produce things like shadow people or things that make you double-take and focus on an object because the fix the brain did was off enough for you to recognize it but focusing gave it more data to do it right.

tl;dr your brain is fuckin' weird and makes shit up constantly and when it doesn't have to do that it's a lazy fuck that sits on the couch and demands sugar, fat, and caffeine.

Interesting. Knowing about that mapping is what I was missing. And so these Photoshop files (PSD) have the Pantone colors in the file data, not just the RGB values? So then when you display the file, it has to map to the color system the computer users? Is that accurate?

At this point, do you expect an "open standard" to replace Pantone or is there just too much investment?

I'm 40 and havent worn any eyeglasses up until about a year ago. My (general) doctor decided to do one of those eye chart exams during an annual physical and found that I was having a semi difficult time.. and so I was referred to the actual eye doctor. They found that I needed very minimal adjustments-- so much so, that the actual lenses look like I'm wearing fake/fashion glasses lol. Anyway... It was amazing how much clarity I was missing out on!

During the first few months of wearing them, I didn't notice too much of a difference with them off. But now, a year later, without them, it's very blurry. Did my brain do that favoring thing you talked about? instead of favoring a good eye over the bad eye, it's choosing glasses over no glasses?

Thanks for the explanation.

So when you use a Pantone color in Photoshop, there's extra data there about what inks to use, etc? It's not just the RGB value stored in the file, it's the actual Pantone color?

So for example, if I have a Photoshop file with Pantone colors and I take that file to a printers, they know how to print it better than RGB? Is that fair to say?

We have machines that can measure how well an eye sees. You might have used one if you've been to an opthalmologist, you know that big one you rest your chin on and look into a hole and you can see an image inside that may shift as the doctor makes adjustments. Last one I used had a picture of a hot air balloon in a field. However what that machine does is send light into your eye and see how it's received and sent back at the machine. We know what a good eye is supposed to be like, how the lens is supposed to focus light on a specific spot inside the eye and how our iris is supposed to move to compensate for different light levels. If your eye ball has the wrong shape, or your eye lens has the wrong shape, or your iris is not functioning properly, the light is not hitting the right spot inside your eye and your vision is impaired.

Given that this is a completely non invasive procedure, and it doesn't really require feedback from the patient despite the fact that opthalmologists may ask questions anyways, it's possible to use it on infants as well, with probably the hardest part being holding their attention long enough to make proper measurements.

In sorting algorithms there is a classification in online and offline. Offline algorithms need all of the data to work. Online algorithms can work with parts of the data and incorporate more data as it is received. I guess he is looking for an algorithm which can compress data arriving from a stream without buffering the whole stream first.

Or he want to compress data over the internet because he has no local admin rights to install a compression software/library.

Hotel quarantine until their genitals have been successfully removed, obviously

This is also the difference between what are known in mixed martial arts as 'air chokes' or 'blood chokes'. An air choke does just that, cuts off the ability to breathe by compressing the trachea. Certain positions with a guillotine choke do this, along with the gogoplata (shin choke). You can also do this with a rear naked choke, which was how PRIDE veteran Fedor Emelianenko preferred to use the hold.

A blood choke compresses one or both carotid arteries and blocks bloodflow to the brain. Properly applied, with enough strength and leverage, a blood choke will make someone pass out in about 5-6 seconds max from hypoxia (lack of oxygen to the brain). Blood chokes are used more often in combat sports precisely because they're much quicker.