WireGuard, and an external HDD. Run at a remote location for off-site backup.
I do this with a raspberry pi 3 at the in-laws. I copied the data over locally before setting it up, and after that it's just nightly incremental rsync, which is fine even over my slow (35Mbps) upload.
No, that's not really a useful way of modeling it for the case of light traveling through a linear medium.
The absorption/re-emission model implicitly localizes the photons, which is problematic
think about it in an uncertainty principle (or diffraction limit) picture: it implies that the momentum is highly uncertain, which means that the light would get absorbed but re-emitted in every direction, which doesn't happen. So instead you can make arguments about it being a delocalized photon and being absorbed and re-emitted coherently across the material, but this isn't really the same thing as the "ping pong balls stopping and starting again" model.
Another problem is to ask why the light doesn't change color in a (linear) medium
because if it's getting absorbed and re-emitted, and is not hitting a nice absorption line, why wouldn't it change energy by exchanging with the environment/other degrees of freedom? (The answer is it does do this
it's called Raman scattering, but that is generally a very weak effect.)
The absorption/emission picture does work for things like fluorescence. But Maxwell's equations, the Schrödinger equation, QED
these are wave equations.
Dispersion and nonlinearities would like to have a word ;)
*in vacuo
I'd like to know more.
In all seriousness though, I thought it had some aspects of good, which was odd given that it's satirical commentary on fascism. For instance, gender didn't really matter and women were promoted, and while the shower scene was meant to show how fascism castrates the masses (or something like that, iirc), I thought it was a relatively wholesome scene, all things considered.
IIRC chvt is a privileged command, which makes sense (if an unprivileged user could execute this command they could effectively brick the computer for a local user).
That said, my understanding is that modern DE's are given a lot of access, so presumably chvt is allowed (and in this case, is required because as others mentioned, password is required). So the only other option is to fail unlocked, which is all kinds of Bad.
No longer available I guess, but I got this: https://www.amazon.com/gp/aw/d/B0DDX1K5S1
Only complaints are that it will thermal throttle on long workloads (e.g., transcoding or facial recognition on my entire Immich library), and the SSD slots
it comes with an mSATA drive in the first slot which is 4 lanes (I think?) and supports mSATA and NVME. The second slot is slower (1 lane?) and only supports NVME. So I had to put my nicer NVME SSD in that slot if I wanted to use the included mSATA drive, but consequently the NVME speed is slower than it should be. (I could swap it to the fast slot but then I couldn't use the included mSATA drive.)
For my use case, both minor issues.
And over twice the GDP.
"Wow you signed the document in blood, you must be really hardcore."
"No I'm just cheap."
That's...pretty believable.
The amount of money you save (and invest) isn't accurately depicted with this though. Living expenses don't necessarily grow with take home, if you keep lifestyle creep to a minimum.
So what this means is that if you make $100k and save $10k/year, if you start making $200k you can save the same $10k/year, plus the entire additional $100k after taxes (let's just say that's $50k+). So you doubled your salary but your savings went up 6x+.
I'm not mad at the huge amount I pay in taxes. I'm mad about what I get in return.