[-] physicswizard@lemmy.ml 4 points 10 months ago

If you are interested in really understanding wifi technology, the difference between the various versions, practical considerations, and cutting through all the marketing hype, I'd highly recommend reading this website.

[-] physicswizard@lemmy.ml 7 points 10 months ago

Good question. This new material is technically a ceramic, not a metal, so I'd be inclined to say no. But we'd need more information on its electrical properties to say for sure.

[-] physicswizard@lemmy.ml 1 points 10 months ago

Boy then are you going to hate QUALIFY

[-] physicswizard@lemmy.ml 6 points 11 months ago

For photos, I have been using Immich, and have been very impressed. It has pretty much all the features I want (automatic backup, chronological timeline, mobile/web app, face tagging, semantic search, albums, sharing, etc). It's a server you self-host though, so setting it up might be a pain if you've never done something like that before.

[-] physicswizard@lemmy.ml 4 points 11 months ago
[-] physicswizard@lemmy.ml 4 points 1 year ago* (last edited 1 year ago)

You have any sources for that? Never heard of this before; sounds interesting.

[-] physicswizard@lemmy.ml 4 points 1 year ago* (last edited 1 year ago)

And a drop in costs too since their system has to support less users.

[-] physicswizard@lemmy.ml 1 points 1 year ago

I agree, the solution is not as simple as optimizing resource allocation. The problem is both social and economic in nature. The owners of production don't just want money, they want power over others.

[-] physicswizard@lemmy.ml 5 points 1 year ago* (last edited 1 year ago)

It's because people's wants have shifted as technology progresses. If everyone was satisfied to live like a medieval peasant and all we needed to produce was clean food/water we probably could have automated most of the agricultural work and done away with the need for the majority of labor.

But people today now want on-demand deliveries, entertainment, healthcare, telecommunications, international travel, etc. and they need to pay for these things somehow, which means work. These shifting desires continuously push the boundaries of what we are capable of producing which ends up redirecting labor rather than eliminating it.

Edit: thanks for the down votes everyone. I'm not saying this is the way it should be or that people should live like peasants, just explaining the basis of consumer/labor theory from economics 101. People typically get more utility out of the things they buy using their wages than they would from not working at all. Right now that's mostly because society would let you starve to death, but even if there was UBI or something like it, there would always be some people who would want to work in order to buy more things for themselves.

[-] physicswizard@lemmy.ml 17 points 1 year ago

Yeah some dude bought the google.com domain via some glitch a while back. Here's a story about it.

[-] physicswizard@lemmy.ml 59 points 1 year ago

People who are arguing that one way of expressing these concepts is easier to learn/understand than the other are missing the whole point. Mathematical notation was not designed to teach students how to do math or explain how to design algorithms. It was invented to communicate precise, abstract ideas concisely between mathematicians who already understand what the symbols mean.

Mathematicians require a notation that has the flexibility to manipulate mathematical objects/symbols in a way that naturally emphasizes their properties and relationships. Often they don't even care whether the objects they're studying are even computable or have a numerical representation. They just need them to have certain properties so that they can be manipulated appropriately.

Discrete sums are a rare example of when the mathematical notation overlaps with the description of an algorithm for computing its value (and the overlap is not even complete; infinite sums are easily represented in math notation but are practically uncomputable when implemented naively). Every other advanced mathematical concept puts a premium on ease of symbol manipulation over computability: integrals, derivatives, matrix multiplication, abstract algebra, etc.

TL;DR math notation is complex because its intended audience is people who already understand it, want maximum flexibility of symbol manipulation, and historically didn't really care about practical computation.

[-] physicswizard@lemmy.ml 3 points 1 year ago

What is this optimized cmatrix you speak of? The normal one slows my desktop to a crawl when it runs.

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physicswizard

joined 1 year ago