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Cake day: July 6th, 2023

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  • Dalvoron@lemm.eetoScience Memes@mander.xyzApplications
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    2 months ago

    I have seen 1 called a trivial factor, but I have never seen it excluded entirely from a factor list: perhaps it’s a cultural thing like how 0 is/isn’t a natural number depending on where you are from.

    On further research it seems like my earlier critique about requiring exactly two prime factors is a little off in any case, as it would exclude e.g. 4 (which only has one prime factor). It seems like semi primes must be a product of exactly two prime numbers so I think any definition based on number of factors is doomed to over- or under- define these semi primes as they could have either three or four factors.











  • Dalvoron@lemm.eetoLemmy Shitpost@lemmy.worldPlease Stop
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    4 months ago

    In practice, this makes these networks very resilient to fraud.

    Could like, 51% of the owners just coordinate to kind of, do a fraud?

    Sybil attacks sound like the kind of thing you’re talking about. I don’t have the expertise to go into it, but one person (or a group) creates lots of nodes and uses that influence to do bad things to the network, potentially including fraud. Or as you suggest, legitimate users can just coordinate to do whatever they wanted (see ethereum vs ethereum classic if you want a chuckle).

    I want to make a note that the networks are only resilient to a specific type of fraud - people trying to enter data in a way that doesn’t meet the criteria of the system. That’s all well and good for wallet to wallet transactions, but when you have transactions going off chain (like buying something, trading for other kinds of coins, doing anything with crypto exchanges), there are still plenty of other kinds of fraud that are possible and happen all the time, because while the chain is fairly trustworthy, nothing else about the system is. Most kinds of fraud involve doing things that technically you have permission to do, because you lied to people to access their password or promised them bigger returns in the future or missold a product or service etc and all of that is still possible under crypto. In some cases crypto is more vulnerable to these things because of having no central authority or regulator or laws or whatever.



  • Oh I’ll admit I’m wrong either way, but yes I do not like my authority to be challenged. It makes the class significantly harder to manage when students feel like it’s OK to dunk on me at any opportunity and provides a bad environment for learning. My preference would be respect, but I will settle for being treated with respect. If a student won’t offer it to me with their questions, then I won’t offer it to them with my response. But I will always admit they are correct (if they are).

    Authority that cannot be challenged is authority that cannot be respected. Authority must continually earn the respect of its constituents, or it will lose its power over them.

    I sort of agree with this. In a classroom, you can challenge me, my knowledge, my abilities. I like to think I earn the respect of my students with all of these, as well as my compassion, my fairness, my humour.

    The reality is that I am an authority however. I wrote the assignments and the exam and I mark them too, and I do it all in accordance with the state-mandated curriculum. If they “know” something because they read about it elsewhere, I should be treated as a equally valid source of information because I am. I know the curriculum inside and out. They dont “need me to admit that I was incorrect, and move forward with the correct information”, they need me to tell them why the thing they “know” is not the thing I’m teaching them. I offer that I was incorrect out of humility, not necessity.