BuildTheRobots

I'm still baffled by the human drivers for those tunnel runs. I can't imagine a more controlled environment where self driving should be capable.

> I do not understand the true goals of Signal, but their actions are inconsistent with their stated ones.

I've been annoyed and suspicious since they stopped being TextSecure and dropped support for SMS messages, and still don't buy the reasons given.

It started as offering opportunistic end-to-end encryption on "direct" (SMS) communications to help privacy. It didn't even need a data connection. People bought into it and as an Android user it was good [1]. Data then got added. First boiling frogs to the side, and then SMS support was removed completely, for what I still think are disingenuous reasons (see [1]), and the summary of it's technically impossible and not worth it. Trust us.

So what did we get? Well instead of leaking metadata to my phone provider, I'm now sending even more metadata to signal. They've put themselves in the path of every kex, every message, every group chat, every call, every read-recipt. Moxie Marlinspike is my new Santa; he knows when I'm sleeping and he knows when I'm awake.

And for something sold as privacy, what the heck is with their Linkedin-be-proud dark pattern of convincing people to upload their contacts (it's safe - honest!), or announcing proudly that "contact I haven't spoken to in 15 years and for good reason" has joined signal! Would I like to connect with the person I was really hoping had forgot I existed and was only saving the number so I could make sure I never answered it? Yes please - and I hope you told them that as well - FML... I'm also suspicious about the encrypted cloud backups, but that might just be me.

They also spent years making it difficult for people on de-googled phones, or to use it on desktop, or to run their own servers, or to run custom clients which seemed at odds with encrypt-all-the-things.

I should be happy about the mass adoption of the encryption protocol. I should see WhatsApp adopting it just before they got bought out by Facebook as a win for privacy for the common folk. I should trust it more now that there's so many eyes on it. I should be in no way suspicious of the lack serious objection the lack of LA provision by the authorities, or the fact Spy-on-You INC would continue buying the messaging platform they can no longer look at.

Things have felt off for a while and I wouldn't be shocked to see it on a future list alongside EncroChat, or Sky ECC, or Exclu or maybe even ANOM - a honeypot from the start. I can't prove anything, and don't know anything, but it sets _all_ of my "there's something wrong and I don't know what it is" senses tingling. But also I'm pretty bad at feelings. Maybe I just need to wee, or drink more water. My gut feel still insists there's a pattern to my RSA dongle's one time codes, so really you shouldn't believe a single word I've said.

[1] There were issues. iirc it didn't work on Apple devices, sms is bad for images and group chats, it broke in a messy but easily bypassed (& fixable) way and it would never work for calls. It also still leaked metadata to the phone network. And SMS is just fundamentally dead and costly - but it absolutely served a purpose.

Interesting you're the first person to mention this.

I had chronic insomnia for >25 years (my entire life) making it extremely difficult to hold down a job or generally interact with society. I've since been on Mirtazipine for about 15 years and the difference is unbelievable.

In the UK it's only dispensed in 15, 30 or 45mg. I was started on 15mg but that left me extremely groggy for most of the next day. My doctor convinced me to move up to 30mg and I'm able to mostly sleep and actually function the next day.

It's not all roses and there's a handful of side effects. Personally I had about 6 months of metallic taste in my mouth and it absolutely buggered my sex drive. A few friends jokingly call it "mirfatapine" as it can make them binge-eat and put on weight, but personally I find the good absolutely outweighs the bad and it's literally life changing.

I know if I forget to take it, because I suddenly realise it's 4am and I'm still wide awake and gibbering. If I'm working festivals then I can _choose_ not to take it and go back to my old routine working 52-hour shifts before falling asleep.

Whilst I'm not overly thrilled at taking psychoactive drugs nightly, it's been the only thing I've ever found (and I spent a lot of my childhood trying anything and everything the doctors recommended and self-medicating in various forms) that actually makes it possible to sleep nightly, and therefore function long term when I'm forced to wake up for work. If you're desperate and out of options it's absolutely worth trying, but do be aware it takes months to become effective.

I wonder if the render resolution was actually determined by the output resolution of the film recorder being used to get the sfx out onto film for display? I can't obviously find a film recorder that offers more than 8k on 65mm/15-perf.

As I've not seen anyone else mention it, I feel the need to point out that Digital IMAX (which is the vast majority of screens and showings) maxes out at 4K.

I can't edit my previous comment (which incorrectly implied that the 3 stations at Droitwitch are going out of the same antenna), but I've done more research and have more information.

Droitwitch LW's antenna uses a T-aerial suspended between two 210m steel masts acting as massive capacitive top-loaded vertical monopole. The signal isn't beamed or shaped, it propagates omnidirectionally and this style of antenna offers _0 dB_ of ERP increase.

Even worse, they're transmitting AM, so the power output dynamically increases with the volume of the analogue audio being transmitted. If you cut off the input to Droitwitch, it'd still be putting out a 500kW carrier wave. When audio is applied the amplitude of the carrier is modulated, so for peak loudness (someone shouting or the loudest spike in music) it can take an extra 50% power to create the upper and lower sidebands - at peak, the Vapotron tubes could be putting out a combined 750kW.

The amplification stage is only ~70% efficient as well, so at peak power it's possible that the site is pulling nearly 1MW from the grid.

--

Compared to a modern UHF DTV transmitter station the differences are wild. The big transmitter near me is putting out 6* DTV MUX's at 174kW ERP each, but that's through a 15dBd UHF array at the top of the mast which gives an obscene amount of gain.

- Mains draw at the wall ~150kW (including cooling and ancillary systems).

- Total TPO (RF energy leaving the cabs) from each of the six transmitters is only ~52kW combined (8.7kW each)

- Output of the combiners after losses of ~0.5dB is ~46kW. We can expect another ~1.5dB of attenuation after forcing it up 300m of waveguide to the top of the tower so we're now sat at a "mere" ~33kW of RF energy going into the bottom of our antenna.

- 33kW with a +15dBd gain gets us to an ERP from the antenna of 1.044 MW.

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Note: Numbers compiled from public sources. All mistakes and misunderstandings are mine. Whilst I do work in a tangentially related industry this is completely out of my area of expertise - in the same way that working as a cleaner at an aeroplane does not mean one knows how to fly or maintain a plane.

You're absolutely right and I was flagrantly wrong - Droitwich does use different antennas for the different LW and MF services (though still has to combine the output of two transmitters for the same service to increase the power and offer redundancy).

I was very much getting myself confused with some of their other transmission sites where they take multiple DAB or DTV services, modulate, amplify and combine them and then broadcast through the same antenna.

> Anything in space is more expensive and way harder to do, for a datacenter there is no benefit.

If we pick an extremely fast orbit, then relativity means the hardware will age out (slightly) slower, so I'm sure that'll help with the maintenance issue.

It's the wrong way around though. Ideally we want to speed up our current compute ability not slow it down; if it experiences more time than we do then it can do more. Relative-MHz means my slower hardware becomes tangibly fast again.

General Relativity says mass warps space time, so we need to get these datacentres out of the Earth's gravity well. And the Sun's, and the Milky Way's; out into the deepest void of intergalactic space. The good news is that a maintenance callout is still quicker than some of the earth based DC's I've had gear in, but the bad news is that it doesn't get us much of anything at all.

Special Relativity lets us abuse time with speed (something I discovered as a teenager). Going faster than Earth means we experience less time, so we just need to try and slow down comparative to our home base. The earth is orbiting the Sun at ~30km/s, the solar system is orbiting the centre of the Milky Way at ~230km/s and our local group of galaxies is moving relative to the Cosmic Microwave Background at ~600km/s. We can easily get our DataSpaceCentre up to 1,000km/s or more, so we just need to point it relative to all that movement we mentioned above making stationary relative to the universe. It's completely doable, but (as well as far more variable response times to callouts) only gets us an extra second of compute over a human lifetime.

Fundamentally, we're attacking this problem in the wrong direction. Earth's gravity is comparatively minor, and our piddly ~600km/s relative movement is a tiny fraction of the speed of light. We should be filling The Earth with compute, and then decamping humanity into space and travelling at relativistic speeds. Or put the compute in space and move the Earth into the event horizon of a black hole. You can't do the inverse of Interstellar keeping Earth where it is, the maths isn't in our favour. If everyone lived on (a less moist) Miller's Planet, we'd get 7 years of compute every hour. It puts Moore's Law to shame; the relative MHz are obscene.

There's the obvious problem of communications. I'm led to believe there's issues with radio and light, so this probably isn't a job for fibre. Veritasium seemed to imply a battery, switch, lightbulb and a wire stretching around the globe would light instantaneously, so I'm sure we can come up with a new copper Ethernet standard for low latency over solar distances.

Invest early, we're going straight past the moon!

> I think in general the ability to spoof numbers should be banned / controlled.

This has absolutely nothing to do with burner phones and the proposed changes won't do anything to change that.

~5 years ago there was a big push (in the USA) to try and solve it with STIR/SHAKEN but I've not been involved or paid attention since then, so don't know if anything came of it. It's a legitimately hard problem to solve though. Lots of engineering and backwards compatibility technical problems, but also political, logistical and commercial issues are abound. You've also got some turtle issues too; it's attestation all the way down.

Out of curiosity, why were you using a >50gb file on a dataset as as iSCSI target rather than a zvol or did I misunderstand?

I don't know how much better modern drives (and SSDs) have gotten[1], but as someone who started digital hoarding in the mid 90's, on-disk bitrot used to be a massive problem. The amount of my video, audio and pictures that suffered damage was palpable. ZFS offering to fix it was massive selling point and the time and based on personal experience, it delivered.

ZFS also lets you specify number of copies on a single disk. This sounds a bit weird, but as drives suffer block failures far more often than total failures, it's actually surprisingly useful in some situations.

[1] My suspicion is significantly, as storage sizes are now multiple orders of magnitude larger and errors per MB can't have scaled up linearly to match.

> ...before you'd want to change your subscription...

For anyone not in the know, Resolve has an exceptionally capable and feature rich free version. A lot of the AI features (and >4k editing) are locked to the Studio licence which is a one-time payment, but works simultaneously on two computers (including different OS's) and allows upgrades across major versions.

I spent less than $300 on it a decade ago and my licence works fine on new v21 released this week. My least-regretted software purchase in 3 decades.

iirc, the OpenFirmware boot image was larger than the equivalent BIOS image - I've got half a memory of resoldering ROM chips on ATi cards so they could be cross-flashed to work in G3/G4 PoweMacs.

You underestimate the laziness.

"Can you paint them gold? And how about custom packaging and drop-shipping as well?"