dvdkhlng

It's a pitty they don't release any source code that we can unit-test against problems with known solutions (while also profiling run-time to stay within polynomial bounds) :)

edit: what am I missing, their reduction to a DNF seems unsuitable to me?

I read proposition 1 [1] to mean: they find an optimal solution for the DNF V∪X, then expect the corresponding CNF C to have at least as many satisfied clauses. However isn't that insufficient? I mean there could be an even better solution with more satisfied clauses in C, that are totally missing when only looking for solutions for V∪X. But maybe I'm just misunderstanding something.

AFAIR LTE (4G) even uses different guard intervals depending on rural vs. city setting because that time-offset is larger in rural areas (less base station density).

I would not expect those problems to be relevant for satellite communication as ground<->satellite does not suffer much of the multi-path signal propagation of terrestrial systems. (IIRC DVB-c sat-TV broadcasts did not even use OFDM, at least not for the older "v1" DVB-c standard).

That's not quite true. At least in germany, VDSL2 with "supervectoring" profile 35b [1] is routinely used, advertised as 250 Mbit internet service [2].

Technologically it's quite a waste of hardware resources and electric power to put these kind of data rates on old twisted pair copper cables (instead of using fiber everywhere), but that seems to be the status quo here right now.

(And I'd guess that the ratio of people being in need of satellite internet is much lower in germany than it is in the US).

Wondering the same myself. Googeling for this issue turns up this power-point [1] which seems to imply on page 6 that "electronic publications, on-line databases, websites, or Internet publications" are also considered as "printed documents". But this is just a power-point so who knows which standard gets applied in practice.

I get the impression that the "printed document" language got written before digital documents and the internet were a thing.

I am not a laywer, don't know a thing about the topic, this is not legal advice etc.

To cite Xah [1]:

"xah-fly-keys.el is a modal editing mode for emacs, like vi, but the design of key/command choice is based on command frequency statistics and ease-of-key score. Most frequently used commands have most easy keys."

I can confirm, that the amount of work on the hands is extremely reduced with xah-fly-keys vs. vanilla emacs (depending on where you put the command mode switch), though I have no experience with evil or vi to compare against.

I recently stumbled over, and started using (and modifying) Xah's "xah-fly-keys" emacs bindings, which are a somewhat more radical implementation of the ideas behind ergoemacs (e.g. use Emacs without any "chording", i.e. without ever having to press two keys at once apart from shift+letter).