They use the Signal protocol. The keys are not generated by Facebook, and are never on their servers. They are generated on the devices themselves.

> The unfortunate part is that CoreELEC only works when you get all your content from a locally attached disk. You can't even really stream it from your beefy NAS/server

This is not true. Streaming from a NAS at high speeds is fully supported and works fine. I would suggest to use NFS over SMB though, SMB gives me issues for higher bitrate content

Streaming apps do indeed not work. It's a device for local / NAS media playback.

The problem with this setup will sadly be that WideVine / DRM stuff will not like it, so you're locked to low resolution playback from streaming apps.

Each of these Android set top boxes need to be certified to get high quality playback.

except, I don't care so much about the high quality widevine playback. Plain youtube, MLB.TV and many others don't need certification. yeah netflix does, but that's less important to me.

> I find it so strange that Profile 7 is effectively unsupported outside of Blu-ray players and this one device.

Since DV Profile 7 is only used for Blu-Ray discs, and playing backed up BR copies from a non BR player is not really supported, it kind if makes sense that it's not supported.

For the Ugoos device, I'm not sure, but I thought the chipset inside supports it, but you still need to flash custom firmware (CoreELEC) and provide a Dolby Vision file to unlock this. So it's not supported out of the box.

> Citation needed? Yubico authenticator doesn't (the secure enclave is the Yubikey). I'd be very surprised if MS Authenticator and Authy (which I don't use but are the most popular apps that I know of) support such backups

Google Authenticator has an export option that I've used in the past, so that one does it for sure. Authy allows cloud-based synchronization in any case, so exporting seems quite possible. MS Authenticator also allow cloud sync, so probably exporting is not difficult.

> cloud-based synchronization

Well I don't disagree that it might be possible to abuse cloud sync in some way to export the secrets, but it's not quite as egregious as just including the secrets by default in an app backup

Not perfect, but (imho) still better than SMS 2FA, mail 2FA, or lack of 2FA

> Also: 44.1kHz sampling rate != arbitrary waveform up to 22050Hz, unless music you're listening to consists of pure sine waves

Every signal can be represented as a combination of pure sine waves. That insight is the basis of Fournier analysis / transform.

It's also (pretty much) how sound is processed by the inner ear. The different little hairs each pick up different frequencies.

> just genuinely more data.

Mastering is mostly done purely digital, so only when they are pressed are they converted to analog grooves. This can never add new data / information.

So is mixing and recording. Nobody is dropping $100K for a decades-old mixing console and tape recorders when a couple thousand dollars worth of computers and software will not only suffice but blow away the other for flexibility and fidelity.

Gain staging against an analogue noise floor, not having nonlinear/nondestructive editing, etc. would be, to use a technical term, "fucking stupid."

I'm really enjoying my Focal Bathys Bluetooth headphones! Sure, wired options will always be better, but when I want convenience, I've been really impressed with these!

clang-tidy can often detect these. If the body of the function doesn't modify the value, for example.

But it needs to be conservative of course, in general you can't do this.

LCD screens with FALD (Full Array Local Dimming) can do HDR just fine. Usually they even have higher sustained brightness due to the inherent limitations of OLED.

With huge halos sure. Go watch fireworks on an lcd with local dimming even if it has thousands of dimming zones you will see huge halos which ruin contrast