Quote from: M.E.T. on 04/22/2021 08:18 amMight be worth just leaving them out of the service entirely. South Africa actually has pretty decent internet in urban areas, and the people in rural areas generally don’t have the money for a $100/month service anyway.So no big loss from a revenue point of view. That's no more true than the last 50 times someone said it. A Starlink terminal doesn't have to be for one person. A $40 wifi 9db omni could easily cover a small village. And not everyone bases their lives on maximum revenue.
Might be worth just leaving them out of the service entirely. South Africa actually has pretty decent internet in urban areas, and the people in rural areas generally don’t have the money for a $100/month service anyway.So no big loss from a revenue point of view.
My speculation is Starlink’s most serious revenue stream in the next few years comes from using a small but high priority fraction of the system for ultra low latency financial data between distant financial capital cities. If so they can prioritize pro Bono subsidized terminals connecting rural villages all over the world to balance huge profits in financial data and analytics with doing something important. Acting as an ISP so middle class people in the countryside can use zoom is a sort of mildly profitable middle ground.
Quote from: Ludus on 06/02/2021 11:03 pmMy speculation is Starlink’s most serious revenue stream in the next few years comes from using a small but high priority fraction of the system for ultra low latency financial data between distant financial capital cities. If so they can prioritize pro Bono subsidized terminals connecting rural villages all over the world to balance huge profits in financial data and analytics with doing something important. Acting as an ISP so middle class people in the countryside can use zoom is a sort of mildly profitable middle ground.starlink should be slower that dedicated fiber network WANS in almost every conceivable case. financial traders (institutional) already have dedicated fiber links in place
starlinks adds at least 1000kM plus any internal latency
Quote from: daavery on 06/03/2021 03:45 amstarlinks adds at least 1000kM plus any internal latencyThat's not how the Pathagorean Theorem works. Over longer distances, the added distance can be less than 1000km. Secondarily, fiber often doesn't go in a strait line.But agree the whole "Starlink is for HFT" thing is wrong.
Starlink can easily beat undersea fiber over that distance, especially once they have ISLs but even before that.
Why do you think "Starlink is for HFT" thing is wrong? Any system that allows for communication between two trading points that is faster than other traders can be (and I claim will be) used as an arbitrage advantage. The physics of the starlink system shows that this *can* be true if SpaceX sells this service to some exclusive HFT customers. SpaceX may or may not choose to sell specific HFT-useful service. I would agree that Starlink serves many other purposes and many other paying customers. Not selling starlink for use in HFT is not a big deal.* HFT = high frequency trading
While there is no single definition of HFT, among its key attributes are highly sophisticated algorithms, co-location, and very short-term investment horizons.
Quote from: freddo411 on 06/03/2021 03:42 pmWhy do you think "Starlink is for HFT" thing is wrong? Any system that allows for communication between two trading points that is faster than other traders can be (and I claim will be) used as an arbitrage advantage. The physics of the starlink system shows that this *can* be true if SpaceX sells this service to some exclusive HFT customers. SpaceX may or may not choose to sell specific HFT-useful service. I would agree that Starlink serves many other purposes and many other paying customers. Not selling starlink for use in HFT is not a big deal.* HFT = high frequency tradingwhich HFT customers would benefit from starlink? I am under the impression that most high frequency traders colocate with the exchanges, ie. servers a few blocks from the New York Stock ExchangeQuote from: wikipedia link=https://en.wikipedia.org/wiki/High-frequency_tradingWhile there is no single definition of HFT, among its key attributes are highly sophisticated algorithms, co-location, and very short-term investment horizons.
Quote from: Robotbeat on 06/03/2021 04:24 amQuote from: daavery on 06/03/2021 03:45 amstarlinks adds at least 1000kM plus any internal latencyThat's not how the Pathagorean Theorem works. Over longer distances, the added distance can be less than 1000km. Secondarily, fiber often doesn't go in a strait line.But agree the whole "Starlink is for HFT" thing is wrong.Why do you think "Starlink is for HFT" thing is wrong? Any system that allows for communication between two trading points that is faster than other traders can be (and I claim will be) used as an arbitrage advantage. The physics of the starlink system shows that this *can* be true if SpaceX sells this service to some exclusive HFT customers. SpaceX may or may not choose to sell specific HFT-useful service. I would agree that Starlink serves many other purposes and many other paying customers. Not selling starlink for use in HFT is not a big deal.* HFT = high frequency trading
Here is one example on how HFT can make extra fast communication profitable: If it is known that the price for $X has risen in NYC, then traders in London can buy $X for the cheaper London price, and sell it in NYC for the higher price there.
Quote from: envy887 on 06/03/2021 02:54 pmStarlink can easily beat undersea fiber over that distance, especially once they have ISLs but even before that.uh, pretty sure before ISL's the Starlink data will be going over the undersea fiber. Even with ISL's it's not going to be a free for all where any satellite can instantly transmit to any other satellite.
Quote from: freddo411 on 06/03/2021 04:19 pmHere is one example on how HFT can make extra fast communication profitable: If it is known that the price for $X has risen in NYC, then traders in London can buy $X for the cheaper London price, and sell it in NYC for the higher price there.This isn't really an example of what HFT is all about. Collocation as said above is the key.
Quote from: freddo411 on 06/03/2021 03:42 pmQuote from: Robotbeat on 06/03/2021 04:24 amQuote from: daavery on 06/03/2021 03:45 amstarlinks adds at least 1000kM plus any internal latencyThat's not how the Pathagorean Theorem works. Over longer distances, the added distance can be less than 1000km. Secondarily, fiber often doesn't go in a strait line.But agree the whole "Starlink is for HFT" thing is wrong.Why do you think "Starlink is for HFT" thing is wrong? Any system that allows for communication between two trading points that is faster than other traders can be (and I claim will be) used as an arbitrage advantage. The physics of the starlink system shows that this *can* be true if SpaceX sells this service to some exclusive HFT customers. SpaceX may or may not choose to sell specific HFT-useful service. I would agree that Starlink serves many other purposes and many other paying customers. Not selling starlink for use in HFT is not a big deal.* HFT = high frequency tradingBecause it's outcompeted by microwave towers and shortwave radio.
Quote from: Robotbeat on 06/03/2021 08:08 pmQuote from: freddo411 on 06/03/2021 03:42 pmQuote from: Robotbeat on 06/03/2021 04:24 amQuote from: daavery on 06/03/2021 03:45 amstarlinks adds at least 1000kM plus any internal latencyThat's not how the Pathagorean Theorem works. Over longer distances, the added distance can be less than 1000km. Secondarily, fiber often doesn't go in a strait line.But agree the whole "Starlink is for HFT" thing is wrong.Why do you think "Starlink is for HFT" thing is wrong? Any system that allows for communication between two trading points that is faster than other traders can be (and I claim will be) used as an arbitrage advantage. The physics of the starlink system shows that this *can* be true if SpaceX sells this service to some exclusive HFT customers. SpaceX may or may not choose to sell specific HFT-useful service. I would agree that Starlink serves many other purposes and many other paying customers. Not selling starlink for use in HFT is not a big deal.* HFT = high frequency tradingBecause it's outcompeted by microwave towers and shortwave radio.Even across oceans? Is short wave used today for HFT where there’s no land mass, then?
Using subsea fiber, it takes about 33.5 milliseconds to send data from Chicago to London, using the fastest available links across the eastern U.S. and under the Atlantic. With shortwave, one provider, Raft Technologies, says it can radio data from Chicago to London in 29.6 milliseconds.With satellites, it’s harder to put a precise number on latencies. That’s because the satellites in a network are constantly moving, so the length of the shortest path between two points varies over time. Moreover, many satellite ventures haven’t released data on the latencies they expect to achieve across specific routes. One that did—LeoSat—told prospective clients in a technical-specifications document seen by The Wall Street Journal that, around 70% of the time, it could send data from Chicago to London in 29 milliseconds or less.