marcos
@marcos@lemmy.world
- Comment on I'm too stupid for this 54 minutes ago:
It’s not about not teaching the platonic definition.
The problem is that you don’t start at the platonic definition. Mathematicians don’t start there either, they start at a problem. The problem may even be a hole in some other platonic idea, but nothing is ever self-contained Platonism… except maybe for categories, but well, the problem it looks is how far pure Platonism can get you.
- Comment on I'm too stupid for this 4 hours ago:
Yes, people teach mathematics wrong. It should start from application, and only then get formalized.
A large part of the problem is that we put people that study pure math deciding how to teach it.
- Comment on I'm too stupid for this 5 hours ago:
The problem is that the eigenvector is the thing that satisfies the equation he showed you. That’s what it is.
Mathematics is full of completely unsatisfying answers, and only when apply it you get any meaningful idea why those things exist. But those are not their definition.
- Comment on I'm too stupid for this 5 hours ago:
That one is “evidently”. It wasn’t obvious until you tried.
- Comment on Load bearing Tupperware 6 hours ago:
It’s amazing how cheap politicians are relatively to those companies sizes.
- Comment on Load bearing Tupperware 16 hours ago:
There’s nothing tiny about AWS US-EAST-1.
- Comment on xkcd #3157: Emperor Palpatine 20 hours ago:
But somehow he is still old and scarred.
- Comment on American public transit 1 day ago:
so the fucking half hour frequency doesn’t apply
No, you misunderstood.
If I decide to go by bus, it will take more than 90 minutes of travel time. The wait time isn’t counted there. (I would need to take 2 buses, one is hourly, the other one is frequent.)
Before I started working from home, I used to walk.
- Comment on American public transit 1 day ago:
Yes, it’s 3km.
Takes about 20 minutes on a bicycle because you can’t go through the same path. And it’s stressful.
- Comment on American public transit 1 day ago:
I live about 30 minutes walking from my workplace, that usually takes about 15 minutes by car (20 at rush hour).
It takes more than 90 minutes to get there by bus.
- Comment on Mom they're fighting again 1 day ago:
On related news, the salmon fish is not salmon color… And beef comes in larger packages on nature.
- Comment on Physics! 2 days ago:
You will spend a week wishing for an eternity of damnation instead.
- Comment on well designed you say 3 days ago:
This one is quite obvious, and the only way to interpret the post.
But yeah, people’s obsession with that thing is unsettling.
- Comment on Nintendon't 3 days ago:
If it was to plug 2 things, the connectors would be separated so 2 plugs could fit into them.
- Comment on 4 days ago:
Those are specialized for server clusters. It makes zero sense to put them in a PC, and you probably don’t get a lot of gaming performance / Watt from them.
But if you are building a simulations lab that can spare a GPU failing here or there (because also, they become unreliable), then maybe. But the odds are good that the price difference doesn’t make it for the difference in flops / Watt when compared to new stuff.
- Comment on How are these ICE agents allowed to fire on protestors like this 5 days ago:
Ouch, I never even considered the idea of private prosecution in criminal courts. Looks like a remedy that is worse than the disease.
- Comment on How are these ICE agents allowed to fire on protestors like this 5 days ago:
It doesn’t matter if there are entire battalions of lawyers looking for it. Persecutors have the monopoly on getting people charged with crimes.
The other question you can ask is: why isn’t the entire press on fire complaining about government workers committing crimes all day over all over the country?
- Comment on 5 days ago:
That.
Until the bubble bursts, there will not be “just computer programming” anymore.
- Comment on 5 days ago:
Some stores have a very good self-checkout infrastructure.
For some reason, it’s never grocery stores. And grocery stores are basically 3/4 of the stores I need to visit. But it’s possible for them not to suck.
- Comment on The most famous thought experiment 6 days ago:
You can also follow the theory and look if there’s a gravity source nearby. It also works in a fixed frame of reference.
But everybody that tried to make General Relativity non-linear failed… Maybe math just doesn’t like us.
- Comment on some days i cant even 6 days ago:
That’s amazingly good and annoying at the same time.
- Comment on A roundabout 1 week ago:
A “not needed roundabout” is a new concept to me. Are they in a straight street?
- Comment on Censored 1 week ago:
Yes, it is real.
I have no idea what they say inside, though. But he’s getting a big deal of respect for being there at the moment Israel realized the entire world would turn against them and decided to accept the deal where they get everything but the Palestinians are kept alive.
- Comment on predatory giraffes 1 week ago:
I dunno how relevant anything is, but always remember that there exists a kind of snake that does fly.
- Comment on predatory giraffes 1 week ago:
It’s a common Brazilian joke when people get bird shit on their head to say “hey, be thankful cows don’t fly”…
There was one time that one didn’t have even that.
- Comment on What do you think the PPE is for 2 weeks ago:
Well, that change alone would mean elements have different names…
- Comment on THEY'RE EVOLVING 2 weeks ago:
I imagine if it hurt, they would pick some other material.
They mix it with some material they produce, so it won’t behave like pure cement. Also, after you mix it, concrete isn’t caustic.
- Comment on Fell off the horizon into a black hole 2 weeks ago:
The Universe is locally flat.
And so is the Earth if you localize it enough.
- Comment on Does the filament path of ruby nozzles degrade + is DUROZZLE any good? 2 weeks ago:
The idea is that just the very end of the path needs a precisely sized hole. Every other part of the path is wider, what reduces wearing, and doesn’t need as much precision, so wearing isn’t a problem.
I have no idea how it actually works on practice. I never used one of them, and I never used an abrasive material.
- Comment on Giving good Hedera 2 weeks ago:
Not necessarily the bird.
But yeah, AFAIK crickets and frogs only have horny sounds.