

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…
“Can you hold it” was meant as “abstain from pooping for just a little longer,” but was instead interpreted as, “poop, and then hold the poop in your hands.”
I think you mean more scrupulous, not less.
If you lose power, you can use one of these cables to power your house (or at least, the part of your house on that phase).
This is not how you should do this, but it can work. It is not a good idea (possibly illegal?).
Hopefully you can publish in an open-access journal — if not it would be great if you could share an arXiv preprint :)
You said that no one…
I don’t think that was the parent commenter though…
You experience the passage of time as ever increasing in speed, and before long the universe has died, leaving you — immortal and sentient — alone in the cold, dead cosmos, for eternity.
Physics is like sex: sure, it may give some practical results, but that’s not why we do it.
— Richard P. Feynman
I think the same is true for a lot of folks and self hosting. Sure, having data in our own hands is great, and yes avoiding vendor lock-in is nice. But at the end of the day, it’s nice to have computers seem “fun” again.
At least, that’s my perspective.
Whatever you decide for your laptop, I’m a proponent of a barebones off-site setup if you’re trying for 3-2-1 backup or similar.
I use a raspberry pi 3 with a single HD (ZFS) retaining some number of daily/weekly/monthly snapshots. Daily rsync, everything over WireGuard+VPS (TailScale would work too).
From our experience in the US, the birth is nothing compared to the financial drain of the other expenses. And at this age, childcare dwarfs all the other child-related expenses.
We have great insurance and don’t rely on family for childcare though, so the math is very very different for someone with “free” familial childcare and no/lousy insurance…
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.
Same — rsync to a pi 3 with a (single) ZFS drive at family’s house. Retain some daily/weekly/monthly snapshots.
I have a (free) VPS with static IPv4 which is how I connect everything.
Both the VPS and the remote site have limited network speed (I think 50Mbps for VPS), so the initial sync was done sneakernet (well…“airplane net”). Nightly rsync is no problem bandwidth-wise, and is mostly just any new videos I’ve uploaded to my local Immich instance.
Sounds like the opposite reasoning may have some truth:
“Cardinal George of Chicago, of happy memory, was one of my great mentors, and he said: ‘Look, until America goes into political decline, there won’t be an American pope.’ And his point was, if America is kind of running the world politically, culturally, economically, they don’t want America running the world religiously. So, I think there’s some truth to that, that we’re such a superpower and so dominant, they don’t wanna give us, also, control over the church.”
Nah just give them the .tex
source and let them deal with it.
There was an old Top Gear episode with a race in a Nordic country with an interesting take on a price cap — the price enforcement was that anybody could buy your car (for no more than the price cap) after the race.
So I think you technically could enter the race with a brand new tricked out rally car…but anyone could buy it for $500/$1000/whatever.
Because not all humans strive for honor.