151–160 of 252 posts
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Why are there people investing so much money on these things, filling up the space, just for some stupid trading. Why is humanity doing this ??
"just for some stupid trading" is one of the underlying forces beneath the success of all modern economies. Without it almost everything you buy would be more expensive.
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"just for some stupid trading" is one of the underlying forces beneath the success of all modern economies. Without it almost everything you buy would be more expensive.
Are you considering “having cheaper stuff” actually progress in terms of humanity ?
At what point should we start worrying about Kessler Syndrome? > The Kessler syndrome (also called the Kessler effect,[1][2] collisional cascading or ablation cascade), proposed by the NASA scientist Donald J. Kessler in 1978, is a scenario in which the density of objects in low Earth orbit (LEO) is high enough that collisions between objects could cause a cascade in which each collision generates space debris that i…
One obvious solution is to put them in an orbit low enough that they'll fall back within a few years.
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"just for some stupid trading" is one of the underlying forces beneath the success of all modern economies. Without it almost everything you buy would be more expensive.
They referred to HFT only - how does it contribute to "success" of modern economies? It just sucks out value due to stock market implementation.
Admittedly any contribution of HFT to economic success (other than that of the traders themselves, of course) is probably fairly marginal, but more efficient markets are probably a good thing.
Iridium has global coverage (you can make phone calls from the South Pole) but isn't LEO so there's a latency issue. Starlink is LEO and will have faster rates & lower latency, but won't have global coverage since the orbits don't go over the poles (sorry, Amundsen-Scott!). What about the proposed Amazon (Blue Origin?) system?
Iridium is definitely LEO.
So what it's gonna be like - latency and bandwidth?
For latency at LEO, we're looking at below 50ms, going as low as 20ms. For bandwidth, it obviously depends on load and usage. SpaceX's satellites each can handle 1 Tbps, so it comes down to how they distribute and price it. At 100Mbps and 3000 satellites, that's roughly 10 million users. Obviously not all users will be using that much data simultaneously.
Anyone wanna offer me their hypothesis on what Amazon and other tech companies gain from offering internet to people who probably aren't valuable consumers?
Real engineering made a video on it: https://www.youtube.com/watch?v=giQ8xEWjnBs I recommend watching. The channel does really good explanations.
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Because HFT firms can pay for a standard StarLink and get the same results. There are few HFT customers and you have to offer them something that can't get from your consumer service if you want them to pay commensurate to the value provided. Your other points have nothing to do with my HFT specific comment.
"standard StarLink"? StarLink doesn't exist yet, and when it does, it doesn't seem unreasonable to think that two satellite constellation providers could serve the HFT market and both be profitable.
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Sure, there are competitors. Starlink (or any other proposed LEO constellation) offers a fundamentally better product as a result of low latency (ballpark 640ms vs 20ms). Which they get as a result of being in low earth orbit instead of geosynchronous orbit. Starlinks costs per unit bandwidth are almost certainly far lower, meaning the ability to out compete on price. I don't see the existing constellations remaining…
> Starlinks costs per unit bandwidth are almost certainly far lower Interesting, how do you know that?
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One of Starlink's planned markets is global high frequency trading. The latency of radio and laser transmission in atmosphere and space is much lower than undersea fiber optic cables. (Light moves significantly slower through glass than through air.) Even with the longer distance and retransmission they stand a good chance of being lower latency across oceans than undersea cables.
This is not true as far as I can tell. HFT does not appear to be part of spacex’s strategy at all.