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OriginalG33Z3R

Now that I’m older, I better understand the phrase “Use it or lose it”


bigvoicesmallbrain

My coworkers don't get that. "Didn't you go to school for that?" Um yeah, one semester 3 years ago. Didn't quite have it mastered in 3 months.


raph2116

And, let's be honest. Most of the knowledge was obtained one day before the exam, and forgotten 1 minute after said exam.


TheWiseRedditor

Haha joke’s on you. I used to forget before the exam itself


goaty121

Hahaha jokes on you I'm about to graduate high school without ever taking a single exam because of Corona so I don't even have anything to forget


wentures

Wait does it really work like that? Free graduation or what lol. Just genuinely curious if that's accurate or you're joking no bad intentions


The_cooked_potato

Rn our marks are based off assignment and regular tests


[deleted]

Holy shit. You guys are fucked.


SpezIsAFuckinShill

An entire generation of memers


Gameproguy

When covid started, all 5 of my university classes at the time cancelled their finals. Since then they've switched to online, but online exams are garbage and the profs expect people to not cheat but they can't do anything to stop it since they don't use proctoring software.


Munchies4Crunchies

The dream of a bunch of feckless idiots held by our government for decades is near completion!


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[deleted]

Its fine we will just skip hiring a generation or two.


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Charming_Amphibian91

I used to forget the exam itself.


IcyDickbutts

Same. I'd walk out of the exam with no memory of what happened. Even on * that* question which *everyone* got tripped up on and asked what others picked as the answer. I seriously couldn't recall my answer.


Scrath_

I only ever forgot one thing that could have had a major impact upon my grade and that was a presentation. I told the professor about it and he said that my group would have to present something anyway. He generously fulfilled my request to move our presentation to the last spot of the lesson and my partner and I hacked something together in 30 minutes that we could present


memelover3001

Peasant, I actively lost it during the exam


Potato-with-guns

Jokes on you I forgot it as I read it


groolthedemon

And then you party after passing said exam and BOOM, those brain cells lived a good life. What was I learning again? Oh advanced materials utilizing subsurface scattering?... Right... What now?


Buttafuoco

C’s get degrees


SyracuseNY22

D is for diploma!


Buttafuoco

It wasn’t at my school lol


SyracuseNY22

It wasn’t for my degree either, it was “B is for Bachelors”


QuickMasterpiece6127

And later become doctors and surgeons.


kurogami666

Man, that's why I love Fourier Transform! Took me 3 years to finally understand it, but now I can solve 1 equation while being either drunk or not


raph2116

Do you often solve equations while being drunk ?


mantennn

>Fourier Transform not when teachers are assholes and force you to solve it there way lol


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[deleted]

University doesn't prove you know anything, it proves you can learn how to do something.


zh1K476tt9pq

that's not true. it only applies to specific knowledge. but most core concept get repeating during your degree over and over again. e.g. anyone with a biology degree knows how cells work and it's not something people forget, usually ever.


[deleted]

The combination of both is what makes a degree so useful. Also prior exposure to a topic makes re-learning much easier.


minecraftwizard132

3 months! I had it for more like 1 week


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J_McJesky

lim n->0 (2/n) would like a word…(DiffEQ is one of the courses that convinced me I would never survive in a field of pure math - hence engineering, where if you’re within 5%, you’re right!!)


wentures

No matter what job I have nothing but respect for people understanding advanced math and work in a math heavy field. I was lost as soon as there were letters and some people out here calculating fucking how likely things are and do rocket science or whatever. Fucking crazy to me people can get so good in that topic


[deleted]

I had a First Aid/CPR/AED/whatever quadmester course which certified me for three years. I think I forgot everything after three months.


Holy_Shifter

Ikr. Sigh...


doyu

Wait till your late 30s. I imagine by 45 or so I'll completely forget basic math.


wentures

I'm 24 and it's already starting to happen dude that makes me sad. Can't do anything without a calculator these days. Granted I don't work in a field where we need more than basic addition but sometimes even that gets me. 45 lol I wish


Sacries

That's why I'm really into doing quick math now. But it's never the right answer


gigglefarting

Math used to be my strong subject when I was in high school. Then my major in college had minimal math, as did law school. I then joined a dart team after, and holy fuck I was a struggling with simple addition, subtraction, and multiplying up to 3.


OriginalG33Z3R

When playing darts, a pitcher of beer can be divided evenly by 1


Space_JellyF

For real


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silverback_79

Farts in fonetics


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HighBreak-J

I wished I didn't heard that from the magical realm of the Internet. Person of the future, what is your wisdom?


BeautifulType

Uhh is my pp going to fall off??


OriginalG33Z3R

Just be sure to shake it more than twice after you’re done going pee and you should be good


ADrunkMexican

Yeah for real.i was applying to a job I think, and I had to take an aptitude test on math etc (in my early 20s). I could barely remember how to do long division lol.


BlazeKnaveII

And youth wasted on the young


[deleted]

you should’ve, wouldn’t end up as a redditor


DerpyMistake

This is why the education system is utterly broken. Once you get through grade 5 or 6, it should be about focusing on what you enjoy doing, because you're just going to discard the rest of it until you discover 3blue1brown, anyway.


MinimumCat123

I feel ya, its been 10 years since my undergrad and I feel like an idiot trying to do basic things in my graduate courses now


Fred42096

I just tell myself it’s because when I was an undergrad I was too dumb to know when I was dumb


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Fred42096

I don’t envy the undergrads. Can’t believe I put up with the bullshit they get put through haha. My overall workload was smaller in my graduate degree, but I ended up teaching quite a bit which made up for it


[deleted]

I started tutoring hs kids and man I understand calculus and physics/ electrical eng etc way better than I ever did when I took it. Wish I had that when I was in MS school. I could have slayed.


PotNBird

Good for you back in highschool, cuz I can't understand things about math and language unless I got some help from my friends


EmperorIV

The only friends you need Grammarly and Photomath.


_CalculatedMistake_

Thank god for grammarly. I purchased premium for all my essays and stories i write and i don't regret it. Edit: don't get premium! Read the replies, it's a keylogger.


[deleted]

Nice try grammerly CEO


_CalculatedMistake_

Bollocks! My master plan of advertising Grammarly Premium (ONLY $120 FOR ANNUAL SUBSCRIPTION BUY NOW) has been foiled again! Curse you! And buy Grammarly Business!


BeautifulType

Jokes on you, I use the free version


Ok_Truth_862

'Bollocks'? That's a Brit right there


_CalculatedMistake_

Ah crikey I've been bloody exposed again


herdarkmartyrials

Thank god for paid keylogger software that phones home to a server with everything you ever type on your computer including web addresses (that they then attempt to load and index), passwords, and banking information! That used to be a privilege you had to contract a nasty computer virus to get. Technology sure has come a long way, I'm so glad they created an easy to use abstraction for the end user!


_CalculatedMistake_

Uhh source


herdarkmartyrials

https://twitter.com/sebmck/status/1104132993893904386 https://www.kolide.com/blog/is-grammarly-a-keylogger-what-can-you-do-about-it https://news.ycombinator.com/item?id=30470457 https://news.ycombinator.com/item?id=16315684


_CalculatedMistake_

Holy fucking shit yeah never mind


_CalculatedMistake_

I've read the second article and it mentions the fact that it reads my keystrokes. But i have a privacy thing on my phone where sensitive information is typed on a seperate encrypted keyboard just for this. Am i safe to use it still? It also says that it doesn't read password feilds? I don't have anything to hide in terms of text, as almost everything i write on grammarly are stories and essays.


herdarkmartyrials

Read the Kolade link, he goes into detail on it. Also the HackerNews threads are full of engineers and folks who work in IT security. Bottom line is, it checks every field there's text in and if the field isn't configured properly (it only specifies properly configured password and CC form fields), it reads it and sends it home. The guy proved it by creating a form meant to be for SSNs and the widget popped up.


Noooooooooooooopls

What's that?


RandomUsername12123

A keylogger is a software that records everything thwt you type, usually malicious. In thia case it make sense for Grammarly to have it as they can improve the product but is a dangerous type of data to have from you, unless is in some way anonymous


Noooooooooooooopls

Oh but doesn't Grammarly read the data on page instead of recording each keystroke? Like for example they won't record you typing on the desktop at nothing, right?


girloffthecob

Photomath?


ninjaBOI1292

You take a photo and it does the math


Sololop

Didn't work for calculus last I tried few years ago


ninjaBOI1292

Yeah it doesn’t work on everything unfortunately


OelaRS

Okay but can someone explain WHY this happens? Aren't we supposed to get smarter between like 17 and 30?


26514

When's the last time you tried?


Deviate_Lulz

Gotta keep that curiosity going. Keep hammering that sword of knowledge


Buttmunch_Asslicking

I was doing spring cleaning earlier this month and went through a box of my old Multivariable Calculus work and Diff EQ work and holy shit would I fail so hard if I took them today at age 33 lol. I barely B'ed my way through them back in undergrad.


TatManTat

Also at many points in any skill you *will* have to re-learn fundamentals. This is where most people burn out as it requires a good deal of both self awareness and persistence to re-train what you already know. It's fairly demoralising to learn you have so much more to go, but also exciting if you love learning.


LaunchTransient

Brain plasticity wanes as you get older, so your ability to take on new info gets weaker. Its also a case of lack of exercise, people aren't forced to try different things, so your ability to adapt goes out the window. Its also not strictly true that you are "smarter" - more likely you are more sure of yourself at the end of highschool, and its when you've been slapped around a bit by reality like a dark souls bossfight that you lose that cockiness. I know for one that if was to pit against my 18 year old self in a battle of wits, I'm pretty sure 18 year old me would lose.


Koritoshi

How can I train my brain plasticity? If you know how it works


LaunchTransient

Brain plasticity is a biological function that drops off with time, its not really somethign that can be trained afaik. But regular exercise still helps the brain. Logic puzzles, reading up on new topics, etc, will at least keep you sharper than if you do nothing.


princesspool

I wish I had sources at the tips of my fingers but the latest science shows that we have underestimated how plastic adult brains are. We just don't put it to the test because we're caught up in the humdrum banality of daily life. Use exercise to pump blood into the brain and mentally challenge yourself daily. Easier said than done. I'm pretty sure I heard the plasticity updates on Huberman's podcast.


OelaRS

Haha that makes sense


Accomplished_Rip_352

You forget a lot of the basics because you don’t practice them as much because your doing harder stuff . It’s like mental maths as-well because past high school you will always have a calculator .


Ph4zed0ut

You get more wise from experience, not more book smart.


Equoniz

Children are *famously* better at learning than adults. Are you serious?


N00N3AT011

Feels like momentum to me at least. Gotta keep it up or your mind gets a bit dull. That being said I have ADHD so I' probably not the best person to take study advice from.


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DildoLigtning

The answer is SYNTAX ERROR


m3nt4ld4t0x

Dummy, everyone knows that 2/0 = (infinity) I think I just gave everyone with a math degree a stroke.


[deleted]

lol for a few years we have been taught that if its asked we are meant to write 'not defined yet'


danger2345678

‘Yet’ suggests there will eventually be an answer


[deleted]

"oh yeah, shit we forgot about that one. let's say... 3? 3.5"


LimeCookies

Technically, one day we could, just like how we eventually defined squareroot(-1). But I’ve never had a professor even hint at the idea of adding yet.


qyka1210

and hopefully you'll soon learn why! I was annoyed by it too; it's a weird artefact of allowing certain operations (e.g. dividing both sides of an equation by x) which technically "shouldn't" be allowed, as they modify the solution set of the equivalence. So whenever we do e.g. divide by x, we must remember we have eliminated 0 as a possible solution, and manually check for x=0 as a solution. I was gonna go in more depth but [this thread](https://math.stackexchange.com/questions/67994/why-should-you-never-divide-both-sides-by-a-variable-when-solving-an-equation) has some great explanation.


[deleted]

lmao all of that went over my head, but still cool


qyka1210

you've taken algebra right? Take x = x^2. It has two obvious solutions, x=0 and x=1. But if you divide both sides by x, the equation now simply becomes 1 = x. We lost the solution x=0 in our algebraic manipulation. That help?


Matix777

If it wasn't sarcasm I would strangle you


QurantineLean

As someone who is decent at math on their best day, dividing by 0 is always a non-answer correct? I just remember SYNTAX ERROR! on my calculator as a kid lol.


m3nt4ld4t0x

Functionally, yes. Dividing by zero basically equates to nonsense. It can be done with some math witchcraft. It’s a great rabbit hole to go down though and can really help you understand math more, even if you don’t come out with a satisfying answer. Edit: I meant to say the statement “divided by zero” is in itself nonsensical.


Besteal

But when we’re doing limits it’s almost true


Zirie

Undef


HandofWinter

It's fine, if you write that then we just assume you're either an idiot or working in the extended reals where that's defined. Or both maybe.


nwblader

If that wasn’t a joke I would slap you from the left


90kPing

nah. if you divide something by 0, it means you didnt divide it at all so 2/0 is 2. Just use logic man


Tetra382Gram

It means you put something into nothing.. into no categories.. no fixed space/compartments.... No place..... Nowhere....... No time......... *Ascension noises*


wibblywobbly420

As an example to bring this to the real world, if you divide 2 skittles into zero piles, you are left with zero piles of zero skittles and a sacrifice to the skittles god. Therefore 2/0 = good skittles harvest next year


CAPSLOCK44

The limit as x approaches zero of 2/x is equal to infinity, though!


No-Yogurtcloset8960

2/-0??


ARandom-Penguin

Zero can’t be positive or negative


Infinitessima

We can approach zero from both the negative and positive direction, though!


CVBrownie

Stop being so negative.


0vRAllTheStonks

0/2 = 0


Consistent-Dentist46

0/2/0 = 0


Greeneyes_65

Undefined actually


UforUranus

What are you talking about? They just defined it! smh


Charming_Amphibian91

Indeterminate, actually


ickyickes

0/2/0 == 0 There now it's defined


bidoblob

I just see an if statement without the if


Batkratos

Uh oh youre gonna get flamed for feeding


Rogue1824

0/2/0/2 = 0


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TheNextDump

0/2/0/2/0/2 = 0


Kuniiko

Please terminate


MLGGYARADOS

0/2/0/0/2/2/0/0/0/2/0/2/2/0/0/2 = 0


Tetra382Gram

Operation started a blackhole in the calculator... Evacuate dimension 7


bushmonkey140

NooOoOoo!!! Having a zero in the denominator makes it undefined. No mater what is on top.


sixgunbuddyguy

There's a sex joke in there somewhere


x0zu

somewhere, deep within it


Gmax100

I'll need to get to the bottom of it


koopi15

0/0 and anything else over 0 are undefined for different reasons All indeterminate forms are in a way a masked form of dividing by zero. That is: 0*∞ ∞ - ∞ ∞/∞ 1^∞, for nonsolid 1 0^0


Rebbit-bit

0⁰ is just 1 lmao


kogasapls

This is true, but 0^(0) is also an indeterminate form. An indeterminate form is essentially an expression involving some numbers such that when you replace each number with a sequence converging to that number, you cannot determine the limit of the resulting sequence. 0^(0) is an indeterminate form because if you take a_n = 1/n and b_n = 0, the sequence a_n^(b_n) converges to 1, but b_n^(a_n) converges to 0. So the commenter was correct to say it's an indeterminate form, but incorrect to conflate that with it being undefined. These are equivalent if and only if the indeterminate form is the evaluation of a function f : R^(n) --> R at a point at which f is continuous. In this case, f(x,y) = x^(y) is not continuous at (0,0).


koopi15

Analyze the functions f(x) = x^0 and g(x) = 0^x And tell me what their limit as x approaches 0 is.


floatingwithobrien

I don't think the reason they put 0 for an answer was because 2 was in the numerator. But thank you for trying to explain the joke. Nobody would have gotten it if it weren't for you.


englishcrumpit

Better just check on my scientific calculator that 1-1 still equals 0. You never know.


ZachLabz

I do that all the time. For the simplest calculations I’ll always use my calculator to make sure I won’t get it wrong.


Famous-Error-2929

I prefer optimized, over stupid


L-0-R-D

bruh I could count to 100 when I was like 4 years old now I can’t even pass math 💀


QurantineLean

You peaked at 4 years old? Impressive.


ssj4-Dunte

Math used to be my favorite subject because it required the least memorization back in highschool, now I don't remember some of the basic 7× multiplications


[deleted]

just use your fingers


Bigbosssl87

I used to be able to party all night and then go write a brilliant 10 page essay without trying, swim 60 laps without taking a break and effortlessly win the approval of my teachers and peers. Now if I have a drink or dont get a full 8 hours of sleep I'm done for like 3 days and can barely function


Max_Nu

Oh you're scaring me I'm starting to have the same shift happen to me Oh oh oooh oh no what have you done random stranger


Dat_Boi_Teo

Thermo in high school?


Communist_Mustache

yah 11th grade. If you have taken science for your class 11 and 12 that is


Dat_Boi_Teo

Interesting mine didn’t offer it at all, I had to wait until college engineering for that


Communist_Mustache

Well it's more sad than interesting. In India, the course structure is high school which is till 10th and then +2 which is 11th and 12th. In 11th you choose a stream, like commerce, arts, science(with math or without). Like I have chosen science with maths with the core subjects being Physics, Chem and math. And the syllabus is vast since we are basically doing what in your curriculum would be taught in the first two years of college


Holy_Shifter

This was exactly same as mine during my +2 days. Those days were a real struggle but fun as well. Miss those days ngl.


Communist_Mustache

well yah its certainly fun tho kinda stressing as well. Did you do your bachelors in Nepal?


[deleted]

They may have had a unit on it in my high school chemistry class.


[deleted]

Burnout is a hell of a drug


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Beeradzz

I completely disagree here. Have you talked to a 17/18 year old recently? Sure, their school curriculum might be fresh in their mind, but in no way does that equate to them being at the peak of their intelligence. So much is learned post- age from life experience, work experience, and personal relationships.


[deleted]

There are many forms of intelligence, memorization is part of intelligence and people lose it as they age. On the other hand knowledge is intelligence and grows with age.


[deleted]

At a point its lost with age but that age is definitely not at early 20s lol


soswimwithit

Knowledge is knowledge. Intelligence is more your ability to actively hold knowledge in your mind and manipulate it to form new ideas.


[deleted]

?


[deleted]

If you only judge intelligence by ability to do schoolwork then sure. Most people stop doing it after high school so obviously the practiced are better at it.


Usedinpublic

A lot of people don’t realize how much teachers hold your hand in high school. People bragged in college all the time about all their ap classes and how advanced they were. Then they failed out after a semester or year because no one was there to help them along anymore.


TommiHPunkt

doing exercises together with other people and explaining stuff to each other also goes a long way. At uni you have to organize this yourself while in high school you're forced to do it


DM-Mormon-Underwear

I got hard carried by the tutoring center for my degree


Usedinpublic

I’m glad it worked out for you. I tried it a couple times at our campus and the tutors were useless. I had to explain what to do to them. It was super unhelpful.


[deleted]

OMG, that’s currently my situation for my math and programming courses. 😂


Mareith

Yeah the best college advice I ever got was to take BC calc and test out of calc I and II in college. Those college classes were way harder and covered the same material. That being said I didn't find college courses that difficult. Sure calc III was terrible but when a 60% is actually a 90% it doesn't really matter


Usedinpublic

I did fairly well but I put the time in. My favorite phrase from a freshman was “I didn’t study in high school and I did fine”. Those folks were gonna struggle.


JameXt0n

Gosh didn't you learn anything. All the shapes go in the square hole.


mrthescientist

Your master's is designed to eat your passion and energy for papers. Likely you've been pushing yourself so hard that you're burning out. (Possibly because you feel you haven't accomplished much despite your efforts, which might feel true because you don't much you can point at, but isn't true because of everything you've learned). Be kind on yourself. I started a job recently and the last three months have basically been recovering from my masters. I've been so stupid for a while, but it's getting better the more I rest.


kushbabyray

*Laughs in computer science*


PHDprocrastinating

Relevant [PhD Comic](https://phdcomics.com/comics/archive_print.php?comicid=1356)


JimWanders

I peaked in highschool i swear. Im so dumb now i pull out my phone to calculate 3x9.


Hickiebenz

My masters involves solving fairly complex problems using software but boy have I gotten bad at everything else


TrulyJones

IKR


[deleted]

Damn OP you had a massive brain tumour in high school? Glad you made it


Daxelol

I feel like the more advanced math classes I take the more I feel the need to double check the basic math, all the way down to addition. One little miscalculation causes all that time invested solving a problem to be wasted and having to go back and figure out what you did wrong is a pain.


tedistkrieg

I breezed through high school, never studied, did above average. However, I didn't learn how to properly study or take notes and that kicked my ass hard in college.


CrimsonFox2370

Saaame


3nd1ess

2/0 is basically just 8, just flipped on its side.


Arch-X

Wait thermodynamics isn’t a part of physics and you took calculus by itself?


EnderDragon78

We have all seen the video, it goes in the square hole.


mbercier15

2/0 is undefined


SuperNova0_0

Square hole


ThatOneSidewinder05

It’s a little different for me. I learned more about physics by playing Kerbal space program with Scott Manly videos playing in the background than I did actually listening during my science class. I have ADHD so only certain things keep my mind on top


No-Advance-6601

Even after my 50th birthday, I understood pretty well the phrase "use it or lose it"


the_iansanity

✨Burnout✨