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The Dunant subsea cable

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Re: The Dunant subsea cable

#222
post #191

Earlier quoted context omitted.

d=r(1/cos(s/(2r))-1)=3958(1/cos(6906/7916)-1)~=2198 mi; Yes, into the lower mantle with only 692 mi to go to the outer core. What I would love the internetz to explain is how to justify the h8 for HFT, yet the luv for Musk since he is the one in the driver's seat at the moment for this stuff with StarLink and the Boring company.

Because HFT helps the rich AF get richer but Starlink benefits normal people?

Satellite internet already exists; StarLink's defining feature is lower latency both by being in a lower orbit and inter-satellite links. It does benefit consumers by introducing another satellite internet competitor, but how many "normal" people want to rely on satellite internet or, if they do, care about a few extra 100s of ms of latency? (Inter)-National wireless companies have a tendency to consolidate and lobby out smaller companies and municipalities who have less incentive to build out fiber and landline companies, if any, have further justification to cut cords. StarLink is the now the leading solution for global low latency connections for HFT by being in a near vacuum in low orbit. The case for HFT benefiting non-professional trader Mrs. Mainstreet is that she no longer has to eat the larger spread offered by the big bank market maker every pay cycle when the 401K contribution hits with HFTraders providing liquidity. The opportunity for smaller traders to make the market is no longer there, but the odds that they would had a chance to begin with have been stacked against them for a long time with the cost of the fastest connection being marginal to now near insignificant.

Re: The Dunant subsea cable

#223

Earlier quoted context omitted.

d=r(1/cos(s/(2r))-1)=3958(1/cos(6906/7916)-1)~=2198 mi; Yes, into the lower mantle with only 692 mi to go to the outer core. What I would love the internetz to explain is how to justify the h8 for HFT, yet the luv for Musk since he is the one in the driver's seat at the moment for this stuff with StarLink and the Boring company.

And tell me how one would service any problems that arise either by tectonic movements or breaching an alien/breakaway civilization hollow earth chamber?

Repair it like any other tunnel that requires maintenance?

Re: The Dunant subsea cable

#224
post #144

Old timer story - years ago, Demon Internet (my old employer) was beginning to enter super-growth and wanted to really set itself up for trans-atlantic connections. So they decided to buy a T1 - 45Mbps link across the atlantic. Now it turns out that BT had only ever resold fractions of T1s - they had never actually had anyone want a whole one. And as such their sales commissions did not cap out. So, we rang up, a sal…

As a Future Sound of London fan, I was so proud to be an early Demon dial-up customer when they name-checked their email address on Demon on their ground-breaking ISDN radio transmission on Radio 1. (To be read in a monotone female delivery) "For further information, please access the following code ... F S O L .. ACK ... F S O L ... DEMON ... CO ... UK" Good times - they were a wonderful company, thank you

For further information on any aspect of this broadcast contact PO BOX 1871. London W10 5ZL. Copyright has been retained in the sound and visual.

Re: The Dunant subsea cable

#225
post #121

I know there are many of these cables that have been around for years, but I am curious how are they physically secured? Especially where they transit from ocean to land? Is there some long underground/sea tunnel of conduit that the cable is routed through to the basement of some building? Or if you are walking along the beach somewhere is there just some cable running out of the ocean along the beach to some buildin…

I'll take any chance I can get to link to this wonderfully sprawling 1996 article from novelist Neal Stephenson about the laying and landing of transoceanic cables: https://www.wired.com/1996/12/ffglass/ Yes it's long, but it's so worth it!

From back when Wired was a really great magazine. I threw out all my 1990s Wired magazines. What a shame.

Re: The Dunant subsea cable

#226

Earlier quoted context omitted.

While an interesting idea, I think you’ve greatly understated the problem. First, lasers and coherent light beams diverge, light cannot stay perfectly collimated and it’s not really possible to collimate well over such long distances. So the receiver, >10,000km away, will “see” only a small cross-section of beam. The efficiency of this is defined by something called the overlap integral between the areas of the beam…

But the reciever won't be be > 10,000km away in the configuration I mentioned. 4 to 5 'hops', remember? edit: arrgh, forget it... one beam, reflected multiple times until 'end of the line', got it...(sigh)

So slightly concave mirrors?

Re: The Dunant subsea cable

#227

Earlier quoted context omitted.

Ever heard of React, Vue or Angular? If you meant mandatory in terms of the actual medium requiring it, I can only hint to interactive applications, aside from that I don't think it would actually be mandatory.

All of those can be rendered server-side if needs be, and in my experience, can actually lead to a superior browsing experience compared to plain server-side served HTML. But it has to be done right. Gatsby + Netlify with a CMS-as-a-service like Contentful or Prismic will lead you to a good result. We made e.g. https://fox-it.com/ using that, its back-end is Wordpress but it's drained empty to rebuild the website. No…

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Re: The Dunant subsea cable

#228

Earlier quoted context omitted.

> Webdevs: is there a reason why a page would be designed so that JS being on is mandatory? I think in the case of Google, it's because they've been told they are the best developers, the top 1% of SWE's, they went through rigorous interviews, are paid a small fortune twice as much as they would get at a regular coding job, etc. So it's dick shaking. They need to show to the world that they're better than plain HTML…

Polymer is used by real people... even more-so if you include the spiritual successor to Polymer, LitElement. That's not to say either are incredibly popular, but still, that seems intentionally demeaning. [0] https://www.npmjs.com/package/@polymer/polymer [1] https://www.npmjs.com/package/lit-element

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Re: The Dunant subsea cable

#229
post #191

Earlier quoted context omitted.

Because HFT helps the rich AF get richer but Starlink benefits normal people?

Satellite internet already exists; StarLink's defining feature is lower latency both by being in a lower orbit and inter-satellite links. It does benefit consumers by introducing another satellite internet competitor, but how many "normal" people want to rely on satellite internet or, if they do, care about a few extra 100s of ms of latency? (Inter)-National wireless companies have a tendency to consolidate and lobby…

" care about a few extra 100s of ms of latency?"

Well, as someone who grew up in the modem era(90's) and was trying to play online fps games. I cared quite a bit about latency. Normal people also like things to be quick you know :)

Based on that experience in the 90s to this day i want my internet connectivity to be as fast as possible and i'm willing to pay.

Low latency enables video/audio chat amongst other things and just a better experience.

A quick google search gives 600 ms latency for satellites(not Starlink) thats quite a alot. Also bandwidth is a issue with existing providers i think.

Re: The Dunant subsea cable

#230
post #191

Earlier quoted context omitted.

Because HFT helps the rich AF get richer but Starlink benefits normal people?

Satellite internet already exists; StarLink's defining feature is lower latency both by being in a lower orbit and inter-satellite links. It does benefit consumers by introducing another satellite internet competitor, but how many "normal" people want to rely on satellite internet or, if they do, care about a few extra 100s of ms of latency? (Inter)-National wireless companies have a tendency to consolidate and lobby…

We used to manage a remote branch over geo stationary satellite, it was an excersise in pain. We used to check the local weather forecast to see if it was raining before doing any work on the servers. Geo internet is awful, I think you are underestimating how much usability difference there would be between LEO and GEO latencies and bandwidth (because geo bandwidth was awful too)
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