andresil

u/andresil@lemmy.dbzer0.com
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Or read his lectures on physics if you want a better understanding, his diagrams and thought experiments and perspectives tend to be very physically accessible imo

The photon can take any possible path, the likelihood that it will take a given path is dictated by some complex path integral, it tends towards the "shortest" path but can take others due to uncertainty.

Ultimately all the path integral does is to show likelihoods of paths, not which path will be taken at any one moment.

Edit: this diagram could also just be shoeing that while a surface may appear "flat" it is microscopically far from it

I think it's not that big of a deal to ask for people to pump the brakes a bit on the thing that is using an outrageous amount of resources to do the stuff we were always doing.

To clarify, I'm not saying there's no use for "AI" just saying that maybe we haven't quite figured out its appropriate use.

This is a best of lemmy comment for me, it gives me hope that the old days of the internet, that I enjoyed, are still possible (those days were far from perfect, but at least it didn't feel like everyone was shouting at each others throats all the time)

Ah, you live near/in Klagenfurt or Graz then. The new tunnel is a great example of how Austria does invest quite well in their train network, I barely ever get any delays and with the klimaticket I don't have to pay anything except seat reservation (which I admit is annoying).

I've lived in Austria, France, Italy, Germany, Spain, Ireland, and england thus far in life and the best train network has been the Austrian one (with Italy a close second).

And sure high speed would be great but it's not very easy given the geography of Austria, I'll be moving to Japan next year, so I guess I will get to try out high speed and see what their systems is like

Yeah, I also try a lot to break the stigma. But I think a lot of people are ingrained in their ways and tradition and it takes more time or effort to see past it. It would also help to get a type of Shazam for the tune that's playing to know what sheets to play too.

In any case, fair play to you for recognising there are some uses that could enable people.

It's funny, I would love to some have the novel tech they developed (HUD / display built into glasses since I'm wearing them anyways). The problem, as usual, is corps taking the piss with prices and profit then spying on you and everyone around you non-stop anyways....

I would 100% be open to some HUD glasses delivered with a FOSS OS that works completely offline and/or via your phone (but still offline). But that's seriously wishful thinking given our corporate and political overlords

Here's a paper about testing einstein's theory:

https://arxiv.org/pdf/0806.1731

It is an older paper, but aftet a skim the only significant missing experiment is LIGO. At the scales which GR is fundamentally concerned we simply do not have sufficient data or technology to test.

If we had tested everything that could be for GR or it had no contraditions we wouldn't be creating modified theories of gravity or proposing new constants to try solve things, or trying to come up with some quantum theory of gravity.

Hartle has a very simple way of viewing this, see photo from his textbook "Introduction to General Relativity" photo

One thing to remember is that GR is still just a theory with a substantial lack of experimental proof, but the maths does work out quite well with it.