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Normalise being wrong. Normalise admitting to mistakes and changing your opinion as you learn more. It's how we learn. It's part of being human.

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If it behooves you, instead of thinking any more about Twitter—hit us with some PDFs, some incomprehensible sociology, a fact about your town, some poetry no one cares about, political theory that will never land, obscure social history, climate links, math things, some tech so obscure 20 people use it. We want your inner noise. Just push the gas on your own ephemeralism and launch us into the future.

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I have covid right now and I can't do as much promo as I would like. But my new novel THE MERRY DREDGERS is coming out next year, and preorders are so important. Any retoots or preorders would be greatly appreciated!

Amazon:
amazon.com/Merry-Dredgers-Jere

B&N:
barnesandnoble.com/w/the-merry

Bookshop:
bookshop.org/p/books/the-merry

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Astronomers just discovered two Earth-size planets orbiting in the habitable zone around nearby red-dwarf star GJ 1002.

Such planets appear to be extremely common across the universe. The big question: Can they actually support life? iac.es/en/outreach/news/espres #astronomy #life

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I've been remiss in not doing an #Introduction by now. I am 50, I live in #Melbourne, I am a cis woman, my pronouns are she/her, I am #Bisexual. I practice #Wicca, I am a #Horror fan, a #Scifi #Nerd, I love #FilmNoir & old #Silent Movies. I read Warren edition #Vampirella comics. I appreciate #Art, I am especially fond of #ArtDeco #ArtNoveau. My music tastes include #Rave #Techno #Detroit #Goth #Punk #Garage #BigBandJazz #Classical #Disco #Rock #Blues.

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Instead of thinking that love, happiness, and those emotions and experiences are less meaningful or less "real" just because they're caused by molecules, think about how amazing those molecules must be to be able to cause them.

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After being banned from Twitter I’ve done about 20 interviews with reporters around the world. They all ask: 

If I get my account back, will I stay on Twitter? Unless Elon Musk makes a dramatic course change, I don't know why anyone—journalist or otherwise—would feel comfortable investing a single tweet into the hands of this volatile totalitarian. I won't delete my Twitter account, but Mastodon is home going forward.

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Welcome new users to the Fediverse!

I'm sure a lot of you joined for similar reasons recently and regardless of those reasons we're glad you're here.

One thing I'd like to point out is there's a misconceived idea of the Fediverse being a "free speech platform" which it is and isn't. It's made up of lots of individual servers that have their own rules so be sure to follow those rules of your server. Some of those server rules might not jive with you so be sure to find a server that does. 🙂

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An hour on here and I'm already remembering how interesting Twitter was at the beginning. No bots, no monetization. Just people sharing interesting and cool stuff. Nice to see it's possible here too. #Mastodon #Brandnew

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i guess i could’ve tagged this #blackmastodon since (afaik) it’s mostly Black elders that do this.

(the thought was prompted by me folding hundreds of programs for my dad’s funeral that are going to be sent to many of the aforementioned Black elders across multiple states.)

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Just a heads-up: you can read any post on #Twitter without giving #Musk any revenue--no ads, no Javascript analytics, no IP-based tracking--by opening the post directly on #Nitter.

It's as easy as replacing the Twitter domain name in the URL with the domain of your favorite Nitter instance.

Even easier: there's also a Chrome extension called "Nitter Redirect" that will automatically redirect any Twitter links that you click to the same post on a Nitter instance.

nitter.net/about

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re: proof that prime factorization is hard 

@futurebird short answer: not really. a lot of people strongly suspect this, alongside a load of other things, but we have yet to make an actual proof.

long answer: in general, we don't know if P=NP. if we measure a problem "size" in terms of N (for factoring, N would just be the size of the number), then the problem is in P if the time it takes to solve the problem is proportional to some polynomial (hence P) in terms of N. more specifically, it can be solved on a deterministic Turing machine, which is how we model computation.

NP means that it can be solved on a non-deterministic Turing machine, which is theorised to be more powerful than a regular Turing machine, hence the assumption that P≠NP. the idea here is that it's non-deterministic because it can simulate multiple paths of computation at once, and those paths themselves can branch into multiple paths, which ends up with exponentially many possible paths. the problem gets solved once one path solves it. this screams "more powerful" but no one has proven it. an alternative way of looking at this is a "lucky guess"; you can solve the problem in the time it would take if you guessed correctly at every opportunity. (also, unlike regular computers, quantum computers can be modelled like these machines, which is why we also assume they are more powerful.)

people often say that things are in NP if we can verify them in P time, which goes along with the lucky guess idea.

now, if we exclude the whole, not proving if P≠NP thing, we usually prove that things are "NP-complete" by saying that there's a polynomial time algorithm to convert them into an NP-hard problem. the classic one for this is boolean satisfiability, which basically is this:

given a logical statement with a bunch of variables separated by and, or, not; figure out what set of values (true or false) those variables have to have in order to make the overall statement true, or if that just isn't possible.

for that problem, we basically don't know a good algorithm besides manually trying all options, and there are 2N of them (more than a polynomial)

prime factorization is even beyond this where we don't know if we can convert it into a problem like that. it's an open question.

we know that verifying prime factors is easy, so, it's definitely NP. but all P problems are NP, by how we define P and NP, so, that's not enough. since we can't even connect it to a problem we know would definitely be NP-hard, like boolean satisfiability, it's all unknown

some extra reading:

en.m.wikipedia.org/wiki/Intege
en.m.wikipedia.org/wiki/Boolea

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Einstein on grief, time, eternity, and the privilege of old age – his moving letter of consolation to his bereaved friend, the Queen of Belgium themarginalian.org/2016/01/22/

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The North Carolina Supreme Court struck down the state’s photo voter identification law and the election map used for state Senate races.

These are two big wins in our state!

In Holmes v. Moore, the court threw out North Carolina’s 2018 voter ID law.

In Harper v. Hall, the court tossed out North Carolina’s state Senate election map.

Both of these cases come down to voter disenfranchisement in our state. We must keep fighting because this is far from over.

#HolmesvMoore #HarpervHall

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@jonsab welcome! A few tips to get you started:

1. Pick a good app. Tusky is great for Android, not sure what is good for iphone but I'm sure someone will pipe up with a suggestion.

2. Follow lots of folks. And follow hashtags. On Mastodon, the only stuff on your feed is stuff you've specifically asked to see, via following. No algorithm to randomly put things in your face.

3. Follow these accounts: @feditips
@FediFollows
#feditips #TwitterExodus

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