You are correct. That's precisely how MWI is thought to work.

The premise of the argument is that, to conserve superposition information, you would necessarily need to prove that it would be grouped with information QM requires to be conserved, when viewed in a space that permitted it to be conserved. If it isn't, then there's no mechanism to preserve it, so no MWI.

No, because the paradox relies on infinitesimals, which have no cogmate in the material world.

Not strictly correct. You would be correct for all consequences over any statistically significant timeframe, but (a) I've purposefully included things that aren't actually outcomes, and (b) over extremely short timeframes (femtoseconds and attoseconds), differences would emerge very briefly, because different mechanisms take different routes.

Remember, the maths only concerns itself with outcomes, not the path taken, so identical maths will be inevitable for non-identical paths.

I would contend that it should be possible to find an implication of each interpretation that only exists in that interpretation. If, for example, Many Worlds is true, then it necessitates that any sort of information cannot be destroyed and vice versa, when considering the system as a whole. If Many Worlds is false, then superposition information is lost when superposition collapses, you cannot recover from the collapsed wave a complete set of all superposition states that existed. I'm sure that someone will point out that superposition isn't information in some specific sense, but that is the whole point. Many Worlds is impossible if you can show that superposition ISN'T the sort of information that IS conserved, because Many Worlds requires, by its very nature, that it is.

This gives us a test that does not require us to look into other universes and can be done purely by theoreticians. If you regard the system as a 5D system, then is that information conserved or not? Yes or no. If yes, then that does not "prove" Many Worlds, but it does mean that only interpretations that preserve that information in some form are viable. If no, then Many Worlds, and all other interpretations that preserve that information in some form, are ergo impossible. Instead of filling out questionaires on what you think is likely, try to prove that it can't be possible and see if you succeed.

I would also argue that physicists thought that the Lorenz contraction was a neat bit of maths by mathematicians that had nothing to do with reality, until Einstein cottoned onto the fact that it actually did. You cannot trust physicists who have an innate dislike of mathematics. This doesn't mean that maths always represents reality, but it does mean that it does so unreasonably often and unreasonably well.

The other thing I don't get is using apps for everything.

I mean, I get it from the manufacturer's point of view. It means they can update things as they please retrospectively and possibly add new charges for functionality or services and/or implement spyware after the sale.

But from a user's point of view, why would I ever want my new home solar power and battery installation that has an expected working life of at least 20-30 years to be dependent on some random phone app to configure it? How many people had smartphones 20-30 years ago? How many people will still have them in 20-30 years? Exactly.

Nothing wrong with providing an app as well for the convenience of those who want it. But anything that is a permanent appliance or fixture in my home and doesn't fundamentally require external connectivity to do its job still needs to have 100% of its functionality available locally as well, without relying on external connectivity or any separate hardware or software platform for the UI.

When there is functionality that really does need remote connectivity, like say a power system that integrates with my electricity provider that offers flexible, demand-based pricing, there should be open standards for how these remote interactions work and it should still be possible to see and do everything else locally.

The world would be a much better place if governments and regulators promoted this kind of future-proof approach but sadly the public sector tends to lag so far behind in its awareness and understand of tech issues that it's not very effective at dealing with them.

I was one of those who always looked much younger than my actual age. Then, when I was 53, my left internal carotid artery unraveled. Right out of the blue. Besides the obvious plumbing issue, there was collateral damage to the wiring, and there are neurological issues as well. I have no stamina (chronic fatigue), my eyes are all fracked up, and I have serious vertigo problems - like just falling down at random times. I call it 'tumbling the gyros'. Lord knows how many micro-strokes I had before it smoothly scarred over, as I'm told it has done.

If you, as I did at the time, wonder how I survived losing a carotid artery, search on 'Circle of Willis'. Talk about incredible 'design'! Collateral flow - it's why I'm alive.

But my whole life changed. No real Plan B. Couldn't work, for a start. And my plans for my land here just stopped. I just turned 70, and I look it. I feel 80.

Bad analogy, because science has no choice but to use the lanes that the signals are emitted on. You, on the other hand, can use absolutely any frequency you please. That won't affect you.

I disagree. First, the bands used for astronomy are regularly used by others, which is one reason why radio telescopes have radio silence zones. Second, astronomy certainly trumps the need for cat videos or porn. Thirdly, you really really don't need all the frequencies that are currently being used for domestic purposes, because they're being used very inefficiently. You can stack multiple streams onto far fewer lanes and use multiplexing. Fourthly, whingers lost any sympathy they might have got from me by voting in twits who keep cutting the science budget. If we had space radio telescopes, you could do what the F you wanted on Earth, but because of the current lunatic situation, you're not only grabbing what scientists need, you're stopping them from alternative solutions as well.

TLDR version: "Good ideas" that are actually good are rare, more often than not they aren't.

Long version:

Now, that's not to say people can't experiment with ideas. We know, from US research, that you can temporarily (2 hours max) put humans into a dormant state and revive them successfully. It's used in some types of operation, when a beating heart is not a viable option.

If you do that, glucose uptake drops significantly in regular cells but not in all types of cancer. If the decrease in the most-active of human cells after hibernation is by a factor of X, then it follows you should be able to locally increase glucose-based chemotherapy around the tumour by a factor of X and guarantee healthy cells remain inside levels they can tolerate.

Since hibernation of this sort involves removing all blood and replacing it with a saline solution, washing the chemotherapy out would obviously be possible before reviving the person.

Would this work? Well, it'll work better than bleach, but a quick sanity check shows that this method is (a) impractically risky, (b) likely problematic, (c) likely to produce disastrous side-effects, and (d) unlikely to be effective. Shutting down the body like this is not safe, which is why it is a last-ditch protocol.

What does this tell us? Simply that "good ideas" on paper by someone who isn't an expert are likely very very bad ideas, even if "common sense" says they should be fine.

Now, there ARE cancer treatments being researched which try similar sorts of tricks to allow ultra-high chemotherapy doses, by actual biologists, and those probably will work because they know what they're doing.

Translation: No matter how good you think an idea "should be", it probably isn't. There will be exceptions to that, but you should always start by assuming there's a flaw and look for it. If the idea is actually any good, it'll survive scrutiny and actually improve under it.

Avpidimg confirmation bias is hard, but if you persist in looking for what is wrong with your idea and then try to fix the issue, you'll either avoid penning yourself in a corner or argument-proof your vision. Either way, you're better off.

No... No... No... You have it all wrong. They want to export their high prices and make the surrounding states suffer. "Sorry Spokane, you got outbid by Santa Clara for the Upper Falls output generated inside your own city. But we can pick you up in the spot market using LA Solar at $1200/MWh!"

Yes, exactly... And they were almost completely wiped out by the Devonian extinction. The name itself adds to the confusion...

T

No kidding... I read the headline and was like "Whoa, is that the late Devonian extinction?" Nope... Hadean. Before even the late heavy bombardment...

T

Very few businesses that are involved in IT in any way have anything remotely close to decent security.

Basically, they need to reintroduce the US' Internet Czar, who should have meaningful authority and who should impose meaningful IT security standards. That small companies can't afford to hire security staff is irrelevant as they mostly either work in the cloud using SAAS, at which point their provider should be handling all the security. If you want to roll your own, then you should accept the burden of paying for adequate security. Minimum standards apply to just about everything else in life, and I'd rate getting IT security right just a little bit more important than getting cars to not roll over (you can usually survive a roll) or preventing toasters from spontaneously combusting (you can park electrical appliances away from flammable stuff).

You can avoid catastrophes with defective appliances but you can't avoid catastrophes with defective IT systems.

Cmdr Taco and Cowboy Neal cashed out, they're long gone. What's replaced them seeks to influence you. Hence at least three "Ahhhh!!!! AI is taking all the jobs" and three "Ahhhh!!!! Climate Change!" stories a day, interspersed a few stories you actually might care about.

T