Ulrich Speidel <[email protected]> wrote: > Where do I even start? The lack of substantial bandwidth between space > and ground? The extra latency between ground and space compared to > terrestrial cloud, especially as terrestrial cloud edge can move much > closer to customers when space can't? The fact that every LEO satellite > is both a few 100 km from every customer and out of the customer's > range depending on when you look? That low temperatures in space don't > mean superconductive chips that produce zero heat, and that that heat > is difficult to get rid of in space? That generating power in space is > orders of magnitude more expensive than on the ground?
Oh, yeah, you are totally right on all of these points.
* Not all DC processing is user-facing though!
* Some are just pure compute loads.
* Some of the customers for these DCs might be in space in the future.
> Just because Starlink can provide a service somewhere between DSL and
> low to medium grade fibre to a few million around the globe it's not
> "done". Even with 10x the number of satellites and a couple of times
> the current capacity per satellite, Starlink isn't going to supply more
> than a couple of 100 million at best, and that's not even accounting
> for growth in demand from IOT...
Agreed.
I think that the useful/interesting result of this effort will be a
peer-reviewed model with some parameters that can be plugged into.
At 2025 prices, space-DC might not be useful.
Perhaps at 2035 prices, the balance might change.
--
Michael Richardson <[email protected]> . o O ( IPv6 IøT consulting )
Sandelman Software Works Inc, Ottawa and Worldwide
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