the original formulation of relativity and physics in general did not distinguish between rest mass creating gravitation and light speed particles generating gravitation

Maybe you have access to some early draft notes of Einstein's, but in his actual papers on relativity mass does not "create gravitation." Energy, momentum and some off-diagonal terms like stress and pressure gravitate. There is no mass term in the stress-energy tensor, nor anywhere else in the Einstein Field Equation. Mass is not fundamental in relativity, it's a property of a system. That property is the product of energy and momentum (and the other stuff) in particular configurations within the system so in many situations it can be used as a surrogate for the underlying energy, momentum and other stuff.

Physics prior to relativity did indeed say a lot of different, confusing things about mass, gravitation and light speed particles.

"Creating fusion" isn't hard. Kids do it for science fair projects. Here's a guy on Youtube making a fusion reactor.

Making a fusion reactor that produces more electricity than it uses is hard. That's what you're thinking of. Rocket engines famously do not usually produce electricity, and if they do they do it extremely inefficiently, so it's a completely different problem.

we don’t have massless drives

Reactionless drives. A massless drive would be an engine that didn't have any mass, I guess. We have lots of drives that don't involve throwing mass out the back, including solar sails, magnetotorquers, electrodynamic tethers, flashlights, etc. Hard drives have a few. Your car has at least one big one and a bunch of others besides, as does your body. None of them are reactionless though.

Reactionless drives are called that because they violate Newton's third law, which is really a statement about the conservation of momentum.

Individual photons don't have mass, abstract or ortherwise, they have energy and momentum. Individual fundamental particles of any kind don't really have mass because mass is a property of a system.

A system of multiple photons can have regular old non-abstract mass if they're configured properly.

Yes?

As for the one in New York, I'll give you three guesses where La Liberté éclairant le monde was made.

Damn science believers, always messing up people's fantasies.

Have you ever seen a shiny new penny versus an old tarnished one? Or the Statue of Liberty? Or an old building with one of those weird green roofs?

They're all copper, with varying amounts of oxygen. Oxygen free copper is expensive copper that's specially made to get rid of as much of the oxygen as possible: https://en.wikipedia.org/wiki/...

If the article got something so simple as THIS completely wrong, one can easily presume that the REST of the article is incorrect gibberish.

"oXyGEn-fREE cOppER", lmao

Indeed.

You can of course have it delivered to your door as well. If you can't receive it at home, as is the case being discussed in this thread, then you can have something delivered to a locker. When you go to pick it up you tell Amazon you're there and they pop open the correct door.

It's interesting how practically everything is "the most convincing proof we have."

Are you crying? There's certainly some starting, but probably a ways to go yet.

Do you not already have this? Amazon has local lockers here in drug stores, gas stations and convenience stores, most of which are open 24 hours. Most of the postal locations are also in drug stores.

100%. The point of learning-based AI is that it's faster and cheaper to develop than conventional engineered algorithms. It also tends to execute faster with fewer resources than conventional algorithms. Apple, Nvidia and other companies already do this locally pretty extensively: DLSS, background segmentation and other processing in videoconferencing, audio processing, photo processing including object and person recognition, text to speech and speech recognition, information extraction from e-mails, etc.

You probably actually mean large language models. Those too. Language models are so compelling because they seem to have personalities and the can interact with us like people. People are going to want theirs personalized. The current approach is to shove context into hidden background for every prompt but that's expensive and very limited. In future you'll have a local version that learns and adapts to you: what you like for breakfast, what time you get up, what kind of jokes you like, if you're a furry. These things are all over sci fi, from Niven and Heinlein to Star Wars, Star Trek and Marvel.

No reason why it can't be open either. The ridiculous amounts of power put into training language models today is because it's an arms race. Six months behind the behemoths it's all enthusiasts reenacting the early days of PCs in their basements.

Both yours and the OPs numbers have a certain... fragrance.

They did. If you don't think military contractors build things as cheaply as they can, or that there's something magical about "military-grade" you're dreaming. They charge as much as they can because they don't have any proper competition.

Iron Dome interceptors, the Tamir missile, cost about $40-50k. Patriots are around $4 million, SM3s $10-30 million. The Tamir works fine and is that cheap because Israel is a small country with limited resources and lots of demands on those resources. Patriots and SM3s are that expensive because the US is a big country with lots of resources, not nearly as many demands on them, and you guys didn't listen to Eisenhower.

Are they the same ones they put in vaccines?