Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades • Hacker News Board

Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades

#81

Post by alexpil » Tue, Jun 23, 2020, 2:51 PM UTC

sargun wrote: post #79

alexpil wrote: post #76

Earlier quoted context omitted.

a single orbital plane at 53' contains 7028 satellites (out of 40k total, but let's take one orbital plane) basic math, "satellite density" or "average distance between satellites" if they were just at random position is ~200km (napkin math, might be off).

Some folks wrote a paper based on the proposed constellation: https://dl.acm.org/doi/10.1145/3286062.3286075 The paper actually talks about trading: > Already there are new private microwave relay links between New York and Chicago[11], London and Frankfurt[1], and London and Paris. These links have relatively low capacity compared to fiber, but are of high enough value to the finance industry to be worth building ne…

more specifically, gen1 constellation was 1600 satellites per inclination at 1150km, gen2 is 7100 per inclination at 350km.

Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades

#82

Post by Erlich_Bachman » Wed, Jun 24, 2020, 6:46 AM UTC

jmnicolas wrote: post #28

Erlich_Bachman wrote: post #24

Earlier quoted context omitted.

You won't like it, but the there is a sensible answer for this. Despite you not liking the stock (and other financial) markets, they do perform a useful and needed task (price discovery, reallocation of resources, reallocation and focusing of human brainpower, reallocation of capital, allowing for investment (allocation of collected capital and resources in the present for future projects, so that they can be achieve…

Your idealistic vision of the stock markets doesn't hold well to the reality of the Fed literally price fixing everything under the sun so that we don't experience the biggest crash since 1929. Right now there is no price discovery, all stocks are way overpriced. While mainstreet is going in flames, wallstreet acts like everything is peachy and jumps on any rumor of a hint of a possibility that someone somewhere migh…

> This won't end well (imo).

People have been saying that for decades. How many decades of successful operation are worth then having a couple of years of "won't end well"? Also why do we think that any other system would "end well" (whatever that specifically means)? It's not like there were never any economic crises or instability before FED and other organizations started manipulating the system that way.

Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades

#83

Post by jmnicolas » Wed, Jun 24, 2020, 6:59 AM UTC

Erlich_Bachman wrote: post #82

jmnicolas wrote: post #28

Earlier quoted context omitted.

Your idealistic vision of the stock markets doesn't hold well to the reality of the Fed literally price fixing everything under the sun so that we don't experience the biggest crash since 1929. Right now there is no price discovery, all stocks are way overpriced. While mainstreet is going in flames, wallstreet acts like everything is peachy and jumps on any rumor of a hint of a possibility that someone somewhere migh…

> This won't end well (imo). People have been saying that for decades. How many decades of successful operation are worth then having a couple of years of "won't end well"? Also why do we think that any other system would "end well" (whatever that specifically means)? It's not like there were never any economic crises or instability before FED and other organizations started manipulating the system that way.

My company will probably default in September according to the boss.

I'm French and I'm convinced that in less than 2 years from now I won't pay with Euros anymore (maybe Francs or South Euros or whatever they will invent).

So at least for me it doesn't end well very soon. But even the FMI boss called for a big reset.

Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades

#84

Post by Gibbon1 » Wed, Jun 24, 2020, 7:12 AM UTC

jmnicolas wrote: post #83

Erlich_Bachman wrote: post #82

Earlier quoted context omitted.

> This won't end well (imo). People have been saying that for decades. How many decades of successful operation are worth then having a couple of years of "won't end well"? Also why do we think that any other system would "end well" (whatever that specifically means)? It's not like there were never any economic crises or instability before FED and other organizations started manipulating the system that way.

My company will probably default in September according to the boss. I'm French and I'm convinced that in less than 2 years from now I won't pay with Euros anymore (maybe Francs or South Euros or whatever they will invent). So at least for me it doesn't end well very soon. But even the FMI boss called for a big reset.

Only comment I have is the in the US the Federal government imposes enormous and continual cash transfers from wealthy states to poorer state. I've come around to the idea that without those the system would fall apart. And that the EU does not appear to have anything at that scale. Also in the US banking is 100% backstopped by the Fed.

Re: Companies Pitch Shortwave Radio to Shave Milliseconds Off Trades

#85

Post by alexpil » Wed, Jun 24, 2020, 11:43 PM UTC

sargun wrote: post #75

alexpil wrote: post #70

Earlier quoted context omitted.

starlink latency could be faster than shortwave, once full gen2 constellation launches, and if starlink decides to care about this industry. ...disclosure: i'm the first one to build NY-Chi microwave, and Chi-Lon shortwave.

It's also bandwidth right? What's the throughput on shortwave? I believe that Starlink promises mbps+. I imagine there are applications you can implement on higher bandwidth are more interesting? Was Pilosoft always an HFT thing?

https://visionscarto.net/enquete-reseaux-hft and google translate for the backstory.

bandwidth is a few bits per message, a few messages per second.

yes you can do more with more bits and more messages, but you can do quite a lot with 2 bits!