How, precisely, would you propose to build something backward compatible with the current spec that can push that kind of bandwidth, and be built for a reasonable cost?

The reason for these limits aren't arbitrary. It gets rather difficult and expensive to generate these real high bandwidth signals. Same reason why 10 gig ethernet costs so much more than gigE and needs better cabling to boot.

It isn't magic, as technology advances (particularly smaller lithography) it becomes possible to do higher clock rates at a lower cost and thus increase the bandwidth going over the cables. However it isn't something where we could just make it as fast as we wanted, easily and cheaply. If it were, well we'd have a lot higher interconnect speed.

So if you know some engineering voodoo that nobody else does that will allow for a 2-4x increase in bandwidth while still keeping cost low, well then off to the patent office with you You'll be able to make a mint. However if you are just whining that you can't have everything, without any actual understanding, then please stop.

HDMI is video and audio transport. Closed captioning works fine over it, since it comes from the video source. Be it your cable, DVD, Blu-ray, whatever, the CC information is processed on the relevant device, and then sent out as part of the video.

Asking HDMI to do closed captioning is like asking Ethernet to do packet filtering: You are looking at the wrong area.

Yes but the punishment for failure is set artificially high, so it makes it riskier. You get widget X and it breaks, the maker of widget X gets sued. and Pays for the the Widget X plus more just to make sure they are punished for giving you, YOU of all people a faulty product. As you have taken a risk of buying a product, and you do not want to take any risk that it wouldn't work.

What is Christianity in America. You can ask each sect and they will groups X,Y,Z are also Christians but U,V,W are not. But if you ask an other group they will say other groups are and are not. They cover a wide range of values. Some very Progressive other very Conservative, some take a more moderate approach.

The whole of Christianity isn't the people who knock on your door trying to convert you, or the people fighting anti-science. That is just a vocal group.

I think you used the wrong word for "Any strong belief"

Stalin Russia was quite violent and evil by today's terms. He wasn't touting Religion but Communism.

Religion tends to make an easy excuse, because most religions are based on old texts that have been translated a few times over, written in people from different cultures and different views of the world, it makes it easy to justify nearly anything with these texts by saying this is fact, this is metaphor, Lets focus on these words and not from those.

When Jesus ask what was the most important commandment, he gave two.
Love God, and Love your Neighbor. I choose to take that as the important parts, but others don't because they dislike their neighbor, and will focus on other parts where it was OK to strike people down.

When you are talking shared wires like cable modems or PON there is always the solution of just add more frequencies. With DOCSIS 3, you can have an arbitrary number of channels devoted to cable modems. So if what you have isn't enough, you can add more. Now that means taking them from something else, of course, however there's likely to be plenty available. When analogue service is discontinued, well that's 100 channels you've got right there (on many cable networks the first 600MHz is analogue cable service, the next 400MHz is all the digital stuff).

With PON it is even easier: Just shoot another laser down the fibre. That is already how it works: You have one wavelength for downstream, another for upstream, and another for video service. Well WDM doesn't stop at 3 wavelengths, you can have more. So as needed, more wavelengths can be added, giving more throughput.

In terms of the sharing issues, well it is easy to see what wins on a busy campus, like where I work. We all share bandwidth, of course, the campus has a gig or two of total Internet speed, not a gig for each desktop. However for all that, wired access is fast all the time. We have enough. Wireless, well that's another story. You go to the student union at lunch time and you find it is really, really bad. Things load slow, if they load at all. You have to reload pages plenty and so on. There are just too many people fighting for what's there. It isn't for lack of APs either, the university puts hundreds (literally) in a building, but when people are all in the same space, all hitting the same APs, well it gets overloaded.

There is an other side. Our tolerance towards failure has became much shorter too.
When we read articles about a cloud service going down for a few minutes we jump the gun and say "Well it looks like that sysadmin guy got fired for that mistake" or if a bridge fails, or a building collapses, or some rich guy losses money... There is always seems to be an investigation that will find the person who had made that critical mistake and have them fired or jailed.

We learn by failures, but our system punishes failures. So we punish learning. That sysadmin who knocked down that cloud service for 5 minutes because he unplugged the wrong undocumented cable, or typed the wrong command to the router to shutdown and not update. Will be much less likely to do it again, then if he got fired, and someone else started working there.

We love that straight A student but we ignore the C/B student. The A student isn't learning much, while the C/B student is learning a lot of stuff.

There is this false idea that wireless is better than wired, that we will all move over, everything will be wireless all the time and life will be grand.

Nope. You can always get more bandwidth, quite a bit more, out of wires than wireless. That pesky Shannonâ"Hartley Coding Theorem just keeps cropping up and getting in the way. If you want more bits per second, you either need more bandwidth (meaning more spectrum) or a better signal to noise ratio. When you are talking wireless the only thing you can do about SNR is to up transmission power, which is not without its own issues, and there is just only so much bandwidth you can have, particularly with given properties.

See part of the problem is that as you move up the spectrum to higher frequencies, it gets easier to have more bandwidth, of course. However your signal gets more and more directional, and has less and less penetrating power. VHF and UHF are really good for transmissions. They are pretty non-directional and can penetrate most buildings without a whole lot of issues. However if you are operating on, say a 700MHz carrier your bandwidth is going to be limited, particularly when you have multiple services that want to use it. Indeed in the US you find that it is partitioned up in to 6, 10, 12, and 22MHz blocks.

Now if you go way up in frequency, this isn't a problem. Go up to a few hundred THz, instead of MHz. Now bandwidth isn't a big issue. If you have a carrier of 700THz then you can have a few THz of bandwidth, no problem and thus tons of information... Only one issue. 700THz might be more popularly called "blue". You are up in the light range now, and of course light can't penetrate for shit. Even a piece of paper would be sufficient to disrupt the signal. It is also highly, highly directional.

Finally there's a big issue which is that everyone has to share wireless. Anyone on a given segment, node, access point, etc is sharing whatever bandwidth there is. You don't each get your own bandwidth, you all have to share. So the more users, the less there is for each and there's really no way around that.

And thus the problem. You can't "just get more" bandwidth when you are talking wireless. You run in to physical limits. Your SNR is limited by power considerations (and distance) and the atmosphere, your bandwidth is limited by what is useful, and not used by other things, and so on.

With wired, not such an issue. You can go way up in frequency, particularly when you are talking fiber optic. However the real thing is that you can just lay more wires. You don't have to send a signal down one pair, you can have multiple. Ethernet is a good example of that. Gig and 10 gig use all 4 pairs, two to send, two to receive. Need more bandwidth on the same tech? Just lay another bundle. 8 pairs, as in two Cat-6a cables, will get you 20gbps, 12 pairs 30gpbs, and so on.

That's all dedicated (and full duplex) too. Only the endpoints use that. You can have stacks of cables running right next to each other, connecting different devices, and none of them trod on each other, they all have separate bandwidth.

So while wireless is cool, and useful, if we want fast speeds, if we want the ability to transfer lots of data all the time, we need wires. Wireless won't cut it. For that matter to the extent we can make it work well, it needs to be short range. You can use higher frequencies, have better SNR, and have less people per segment if you build the segments out. However that means lots of access points all over the place and those need to have backhaul, and that is going to be wired.

There are some kids who are inspired by teacher to become great, There are other who become great in spite of the teachers.

As someone who has grown up with Teachers saying, there is no way you will be able to pass that next grade, all the way up to me finishing Grad School, usually do to my dyslexia. I personally never put a high opinion on their work, and see most of the stuff they do as just enjoying the power ride of being the king of their 40x40 room.

Now not all teachers are bad, but they are a lot of bad ones, and they like sticking the kids who are struggling with the bad ones, so the good teachers get all the smart kids, who knows how to barf up what they crammed in their minds the night before, then forget the next day.

Education policy is advanced, it is too complected for the normal teacher, their world is too small. Sure there are a lot of arm chair educators, but we should be listening to them, as they have all have unique experiences.

Well if they were a little better at math, they could use it to manage their time better.

The problem is most education professionals are not so good at understanding Math, and many really do not trust is.

You go to any college and talk to education majors, and ask them why they didn't major in other majors, after they repeat the normal BS, about wanting to help children yadda yadda, It comes down to the fact that many of the other majors that has a clear career path requires much more Math study, and they don't like Math.

Sure we have a few educators like Math and Science teachers who get it, but they are the minority, and the ones who seems to get promoted to positions where they can make decisions, are usually History and English teachers. So they don't know about this research is because they are not looking for it, and they really don't want to find it, because the numbers may contradict what you opinion is, and no one likes that.

We have the State and Unions fighting over these details and little focus on what works.

I would just move my offices to cruse ships.

Haven gotten my MBA, I have learned the meaning of the word Synergy, (then told to never use it as it has been over used to a point where it is just sounds stupid to say it)

In essence if you are working in a team the sum of what all the members together create is greater then what each individual can do by themselves.

In real life this doesn't happen so much. Usually when you work in the group the result of the group is less then the sum of each individual.

Lets say we use a game of Tug of War.
Each person alone can pull 450 newtons, and you have a team of 10.
Synergy would happen if together they can pull 4501 or more newtons of force.
What normally would happen is that they pull less then 4500 newtons of force because seeing the other people they will not try as hard.

Packet Sniffing is more of a cheap parlor trick then a good way to collect information.

For the most part our infrastructure has moved from Hubs to Switches so there are a lot less free packets bouncing around the net. Routers have gotten smarter and better so chances are it won't bother sending your packet around the world just just to go to your neighbors.