

Yep, you’re right — I was just responding to parent’s comment about fiber being best because nothing is faster than light :)
Yep, you’re right — I was just responding to parent’s comment about fiber being best because nothing is faster than light :)
That’s…not really a cogent argument.
Satellites connect to ground using radio/microwave (or even laser), all of which are electromagnetic radiation and travel at the speed of light (in vacuum).
Light in a fiber travels much more slowly than in vacuum — light in fiber travels at around 67% the speed of light in vacuum (depends on the fiber). In contrast, signals through cat7 twisted pair (Ethernet) can be north of 75%, and coaxial cable can be north of 80% (even higher for air dielectric). Note that these are all carrying electromagnetic waves, they’re just a) not in free space and b) generally not optical frequency, so we don’t call them light, but they are still governed by the same equations and limitations.
If you want to get signals from point A to point B fastest (lowest latency), you don’t use fiber, you probably use microwaves: https://arstechnica.com/information-technology/2016/11/private-microwave-networks-financial-hft/
Finally, the reason fiber is so good is complicated, but has to do with the fact that “physics bandwidth” tends to care about fractional bandwidth (“delta frequency divided by frequency”), whereas “information bandwidth” cares about absolute bandwidth (“delta frequency”), all else being equal (looking at you, SNR). Fiber uses optical frequencies, which can be hundreds of THz — so a tiny fractional bandwidth is a huge absolute bandwidth.
80% of the USA lives within urban areas (source). Urban “fiberization” is absolutely within reach.
Agree that running fiber out to very remote areas is tricky, but even then it’s probably not prohibitive for all but the most remote locations.
So the irony is
I see what you did there…
I think you mean more scrupulous, not less.
Bonus points: use non-qwerty keyboard for added obfuscation (but keep the qwerty key caps of course).
Others mentioned virtualization — I have had issues with COW filesystems (btrfs), as COW does not always play nicely with VM drives (extreme fragmentation and very poor performance).
Maybe there’s some interplay between amd64 and x64 architectures.
AMD64 and x64 are the same thing. Do you mean AMD64 and x86? There is definitely interplay there, as AMD64 implements the x86-32 instruction set.
To each their own though? I can’t imagine why anyone would want something other than i3 (or similar), because almost by definition the DE is not the program I fired up my computer to interact with, and i3 “gets out of the way better” than most others in my experience.
But…that’s just my use case. It’s a horrible UX for most people, just happens to work well for me.
I feel old…when I was learning how to run Linux I started with an old 386 (maybe 486?) my dad wasn’t using. I think it had 32MB RAM, which was fancy for those machines.
We had dial up at the time, so only one machine could be on the Internet. So, I set up a modem on the x86, plugged into an Ethernet hub (switch?), and learned enough ipchains (this was before iptables) to share a connection. It also ran Samba, an AFP server, and probably FTP and HTTP (just for local access) — but it worked for filesharing.
It could also run MP3 streaming software which amused me because the machine itself was too slow to decode MP3 (but that’s not necessary to stream).
Compensation for engineers in the Bay area will average much higher than $200k, and that’s not counting benefits (medical, etc.). So cost to the company will be way higher than 200k/employee.
For a project that has hardware, there will be large expenses associated with that — custom silicon has huge setup costs, for example.
You mentioned ham radio — definitely fun! It’s a process to get into it though, as you need to study/pass an exam, and then you need a radio. Radios range from cheap ($25 or so) in the VHF/UHF (“walkie talkie”-style) to more expensive for an HF rig ($1000 range for 100W HF). If you want to get into low power (“QRP”) it can be much cheaper. You also need a fair amount of space for a good antenna setup…
There are tons of different communication modes, some without a computer and, like you mentioned, some that use computers. wsjtx
and fldigi
are popular programs.
Good luck!
D’oh, I’m a doofus — it’s search
that I was thinking of (apt-cache search
, not apt-get search
).
Can apt-get
refresh package list?
Edit: yes…yes it can. I was confused.
They specified 1 significant figure — at that level it’s the same.
This is the same argument used for blaming the cost of college on government loans for education, for $$$ housing prices in cities that offer low income subsidies, for food prices due to food stamps…
That’s because you’re thinking of trucks used first and foremost for heavy duty “truck stuff.” That is not the only market for trucks, at least in the US: https://www.thedrive.com/news/26907/you-dont-need-a-full-size-pickup-truck-you-need-a-cowboy-costume
According to Edwards’ data, 75 percent of truck owners use their truck for towing one time a year or less (meaning, never). Nearly 70 percent of truck owners go off-road one time a year or less. And a full 35 percent of truck owners use their truck for hauling—putting something in the bed, its ostensible raison d’être—once a year or less.
0-60mph is mostly deprecated these days in favor of 0-62mph, which just so happens to be the same as 0-100km/h — what a coincidence!
Sounds like you’ve only ever used desktops and/or laptops…
Most Linux filesystems, being case sensitive, won’t find the
SUDO
command.