Fully Faithful Functor

Math Graduate Student - Feminist - they/them - TERFs DNI

[cecilias-cool-stuff]

Here's a Pete Winkler classic:

You are playing a game against your adversary Bob. There are four indistinguishable coins on a tray, say in positions North, West, South, and East, each starting as either heads or tails according to Bob's liking. Bob can always see the tray, and you never can. A single turn consists of the following:

1. You ask Bob to flip any number of coins by referring to their position.

2. Bob rotates the tray to his liking (you do not get to know how the tray is being rotated, and he must rotate it by a multiple of 90°).

You win the game if you make all of the coins heads after finitely many turns, and Bob wins if you give up. There is a strategy that guarantees your victory. What is it?

Example and bonus question below the cut.

Example:

Maybe Bob chooses the following initial position:

H

T T

H.

You ask Bob to flip North and East, so the position becomes

T

T H

H.

Then Bob rotates the tray 90° to the right and the position becomes

T

H T

H.

It is now your turn again, and the game continues. At no point could you see anything on the tray, and you don't know how much Bob rotated it - for all you know, he could have not rotated it at all!

Bonus question: If there are only three coins, Bob has a winning strategy. What is it?

[papayajuan2019]

one day, i hope to be moved from your downloads folder into somewhere more deliberate

[the-big-mood]

Clark Kent gaslighting Lois Lane into believing he’s not Superman.

[so-much-for-subtlety]

[rongzhi]

English added by me :)

[playwolves]

this is my little sisters favorite post she sends it to me like once a week

[saggeses]

I’m gonna be so fr rn, yall gotta stop acting like women’s sports only contributions/offerings are 1) that most of the athletes are queer 2) some sort of “morally pure” version of the sport. you don’t realize that you’re doing it but you’re de-valuing them to a point of queerness + morality meter. which the latter is just insane when there are POS’ amongst women’s sports

[saggeses]

“Don’t watch the NHL, watch the PWHL! They’re actually gay!” why is that the only selling point to you

[saggeses]

there is no such thing as a morally pure sport

[godlessondheimite]

i’ve seen so many stories where revenge is awesome and cool and the best thing you can possibly do. just once i would like to see a story in which revenge has two victims, the target and the pursuer. but i guess society has not yet come as far as i have in deconstructing destructive notions of honor and valor entwined with hate. maybe someday someone will write this. not me, though.

[godlessondheimite]

thanks for the recs everyone. can you point me in the direction of things that are about how family doesn’t have to be your blood relatives, but instead can be people you have chosen. what about some creative works that are about the power of creative works. or where the main character is a writer. or something set in new york city where it’s like the city itself is a character. is there anything that is secretly about trauma, bonus points if it’s the way trauma is passed down. these are all ideas i yearn to see represented but i’ve never seen before and i don’t know if they’ve ever been done.

[downwithpeople]

[dogpuppy]

[handsomeboymodelingschool]

[katiecoyle]

I’m a normal adult woman with interests appropriate for my age bracket. That said, Tom Holland should fire his agents and hire me. Tom Holland thinks his audience is primarily men and makes movies for mostly their viewing pleasure; Tom Holland is wrong and Tom Holland shouldn’t. Tom Holland, do you think MEN account for the 175 MILLION YouTube views of you performing “Umbrella” in drag? I assure you they do not. Tom Holland is married to one of the most beautiful and popular women in the world FOR A REASON. Tom Holland thinks he is Mark Wahlberg but Tom Holland is Hugh Grant. Tom Holland should be in Jane Austen adaptations. Tom Holland should be in romantic comedies. Tom Holland should be speaking with his natural British accent at all times. If Timothee Chalamet had even an ounce of Tom Holland’s effortless likability, he’d have won four Oscars already. Tom Holland is for women!

[demonprincex]

on principle i'm completely with the tumblr users who wanna mock folks who don't listen to rap/hip-hop/jazz/country/etc but some of the discourse on the subject on here seems to indicate that people think merely consuming media is like an act of social justice or some shit and thinking about it like that is just as fucked. you're not like, doing a favor to Black people by putting on jazz records you know

[vacuously-true]

Lavender (1.5yo) has kind of finally learned that Lily (14.5yo) really doesn't want to wrestle with him due to her arthritis and general sleepy disposition. He still tries sometimes, and gets growled and hissed at. But other times he just uses her as a hurdle. She'll just be sitting there in the middle of the room chilling and he'll charge at her like he's gonna tackle her but instead he'll barely jump over her. And she just looks around like? What the fuck was that? But she doesn't growl or hiss. She seems more confused than anything. And since she doesn't get upset, Lavender is like, oooooh this is a game big sister is willing to play with me! And he'll run laps around the room, jumping over Lily every time, and she just sits there like yeah okay whatever little bro lol.

[cloudabserk]

[cecilias-cool-stuff]

Me reblogging Marge Simpson where's my bitches 30 times to annoy my mutuals: haha yeah!

Me refreshing Tumblr and hitting 30 Marge Simpson where's my bitches in a row: hey!

[toxicmp3]

he had to ask the audience

[arnieinthesky]

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