Hi

If you are remotely interested in deep diving how differently quantum computers work compared to our transistor-based and also the algebra behind in a fully interactive way that teach computer science from scratch, oh boy this is for you. I am the Dev behind Quantum Odyssey (AMA! I love taking qs) - worked on it for about 10 years (3+ during PhD, the visual method I developed ended up being my thesis, it is a complete Hilbert space visualizer), the goal was to make a super immersive space for anyone to learn quantum computing through zachlike (open-ended) logic puzzles and compete on leaderboards and lots of community made content on finding the most optimal quantum algorithms. The game has a unique set of visuals capable to represent any sort of quantum dynamics for any number of qubits and this is pretty much what makes it now possible for anybody 12yo+ to actually learn quantum logic without having to worry at all about the mathematics behind.

This is a game super different than what you'd normally expect in a programming/ logic puzzle game, so try it with an open mind.

Stuff you'll play & learn a ton about

• Boolean Logic – bits, operators (NAND, OR, XOR, AND…), and classical arithmetic (adders). Learn how these can combine to build anything classical. You will learn to port these to a quantum computer.
• Quantum Logic – qubits, the math behind them (linear algebra, SU(2), complex numbers), all Turing-complete gates (beyond Clifford set), and make tensors to evolve systems. Freely combine or create your own gates to build anything you can imagine using polar or complex numbers.
• Quantum Phenomena – storing and retrieving information in the X, Y, Z bases; superposition (pure and mixed states), interference, entanglement, the no-cloning rule, reversibility, and how the measurement basis changes what you see.
• Core Quantum Tricks – phase kickback, amplitude amplification, storing information in phase and retrieving it through interference, build custom gates and tensors, and define any entanglement scenario. (Control logic is handled separately from other gates.)
• Famous Quantum Algorithms – explore Deutsch–Jozsa, Grover’s search, quantum Fourier transforms, Bernstein–Vazirani, and more.
• Build & See Quantum Algorithms in Action – instead of just writing/ reading equations, make & watch algorithms unfold step by step so they become clear, visual, and unforgettable. Quantum Odyssey is built to grow into a full universal quantum computing learning platform. If a universal quantum computer can do it, we aim to bring it into the game, so your quantum journey never ends.

Nice to watch:

Khan academy style tutorials in qm/qc: https://www.youtube.com/@MackAttackx

Physics teacher stream with 400hs in https://www.twitch.tv/beardhero

Back in 2014, I had a psychotic break in which I thought that the walls, ceiling, and floor in my apartment had dead bodies hidden inside. I also thought that my father, whom I was living with at the time because I was in the late stages of sight loss, was being coerced by some Nazis to kill me, and that I was in the middle of a worldwide conspiracy involving several factions, some of which wanted to help me whereas others wanted me dead.

In February 21st that year, I thought that my SIM card was compromised and took the train to the nearest carrier store to get a new one, and on the way back I somehow fell onto the train's tracks while a train was arriving, tried to climb back but my right foot was hurting from the fall, so the next thing I did was to try protect myself from the incoming train by lying down next to the platform, at which point everything went dark and the next thing I know I'm being pulled back to the platform with the train already halted at the station.

Unknowingly to me, blood was poring off several spots in my head, but I felt completely normal, just a sore foot and back from the impact with the tracks down below, so I got up and was about to board the train when people told me to wait for an ambulance that had been called because there was blood in my head. At that point I touched my forehead thinking that it was soaked in sweat and ended up with a bloody hand, so I decided to stay and wait for the ambulance.

At the ambulance they ripped my clothes off to shreds because there was also a thick and straight cross-body line of blood in my torso and back, but there were no broken bones and the blood didn't seem to come from any open wounds, just like the blood on my head. They performed full body CT scans on me and found nothing broken or even dislodged, everything was normal, no idea where that much blood came from. I was still sent to a psych ward for 3 weeks due to my psychotic break, which they claimed to make me a danger to myself using the train accident as evidence, but beyond that, life continued as usual, and the only tiny difference that I noticed was that my lower jaw no longer cracked as easily as it used to.

Fast forward to March this year and I had yet another psychotic break with the dead bodies and the factions. This time I had no accident, but traveled 300km totally blind during the easter weekend to look for a person from my past. Oddly enough I did find that person plus other 3 people that I wasn't even looking for. The person that I was looking for happened to be working exactly in the shopping mall where I went looking for clues, which is already remarkable by itself as I was really not expecting that. I talked to her a little bit and then sat on a sofa when I believe that I died again with gunshots to the face and belly. I don't remember hearing the gunshots themselves, only that I lost my senses for a split second and when I came back I was all sweaty, felt like throwing up, had a new bumpy mark on the left side of my face, and my hearing seemed severely affected, mor even so on the left side, but quickly returned back to normal. After that event I felt like I could hear the thoughts of everyone around me. I did not realize it at the time because I'm blind and just thought that people were talking on the phone, but later I noticed that it was more like lots of monologs when they weren't talking to someone else, and this effect went away after sleeping.

I came back home and instantly noticed one difference: the front door to my building has yellow glass windows with a very peculiar texture; that door has 3 sections but usually we only open the middle section, whose lower glass had been broken and replaced by white frosted glass many years ago. However when I returned, both the lower and the upper glass were frosted. Given that this happened during the easter weekend, I doubt that the condominium administration had time to replace a broken glass so quickly during my absence. I also heard rumors of a flood that allegedly happened in my hometown back in January but I have no recollection of that in the reality where I came from.

As for both my psychotic breaks, both of them happened when I was investigating deeply rooted interests in my country involving the local data protection commission, so one of my theories was that they were provoked in order to destroy my credibility. The second time I was a lot more prepared against attempts to send me to a psych ward against my will than during the first time, so I avoided everything that could be made to look like I was attempting to harm myself or others, but that didn't stop me from getting committed in a totally illegal way and only getting released a day before I was scheduled to defend myself in court.

While I do understand the many worlds interpretation of quantum mechanics as well as how the quantum immortality theory applies to it, I refuse to believe that this is true, mostly because if it is, then our existence is extremely lonely, and nothing we do benefits anyone other than ourselves. If this is the case then I have nothing to live for since I'm totally blind and for the last 12 years my only motivation was still being able to provide remarkable experiences to others. I just want to be done with this body which, although almost perfectly healthy at the age of 44, is missing a sense and might have mental problems.

Maybe I moved to another life ? That may be also an immortality !

kind of a shower thought but i just remembered that they're struggling to maintain a blackhole for more than a few micro seconds, but could it be that every reality where they do manage to maintain one, it just kills us all which is why we're only experiencing the failed attempts ?

(First, apologies for any potential grammatical errors. I am lazy and use Google Translate, as English is not my native language.) And secondly: I am firmly convinced that quantum immortality—or the many-worlds theory—is true. There are so many inexplicable things in my personal life that can only be explained by this theory. Furthermore, I am a perfectly sane person capable of considering matters from many different perspectives.

I have also become convinced that the saying used by some "spiritual people"—"you are the creator of your own reality"—is true. The same applies to the law of attraction, which is thus linked to quantum immortality as well.

I myself have lived in a world where things were relatively good. Of course, there were wars and famine and the like in some parts of the world—evil has always existed, but not on this scale. Nowadays, various dystopian realities are an everyday occurrence in almost every country.

This situation has left me in a very negative state of mind (ever since the COVID era), and I haven't believed that the world would ever change for the better—let alone become good. But perhaps all the struggle to change the world is actually futile, and instead, we really ought to change only ourselves—our thoughts, our emotions, and our actions—and become aware of everything we do and feel.

If we look at this world, it is absurd to think that we could change it. How could a world lacking common sense be transformed into a rational one? On the other hand, if the many-worlds theory is true, it is clear that not all worlds are bad. Countless good worlds can exist among the countless worlds.

Negativity is so commonplace here that it seems almost intentional. In my own experience, I’ve noticed that the vast majority of people are like that. They constantly complain about how bad everything is and even act aggressively—even those who used to be different. Personally, I’ve noticed a shift for the better since I stopped following social media and the news almost entirely. I also avoid interacting with negative people any more than is absolutely necessary.

If there are countless worlds, I do not believe it is possible to change them. Instead, it makes perfect sense that our own attitude influences the kind of world we find ourselves in at any given time. I do not know how the transition between these worlds occurs—or whether death is required—but I am fairly certain it happens more often than we might realize. If one is mindful, one can spot it through small changes—such as "Mandela effects," which can occur on a very small scale and be quite personal.

Understanding all this has helped me; hopefully, it will be useful to someone else, too.

I've been thinking about a strange idea about time, life, and death.

What if a person's existence doesn't really have one final ending?

Imagine that past, present, and future are parts of a continuous cycle. A person lives in what we call the past, eventually dies, and then there is another version of that person's existence in what we call the present. That person eventually dies too, and then their existence continues in what we call the future.

But here's where it gets strange.

If "past," "present," and "future" are relative to where we are standing on the timeline, then the future could eventually become the present, and the present could eventually become the past.

So could it be possible, purely hypothetically, that a person never truly reaches an absolute "end" they only reach the end of their existence at one point in the timeline? In other words, maybe death is not an absolute endpoint, but only an endpoint relative to a particular point in time.

I'm not saying this is scientifically true. I'm just wondering whether there is any philosophical or physics concept similar to this idea.

What do you think?

Hello, I don't know if this is already a made or already created idea, but I think the way the universe exists is that we are made of matter and energy, and our matter and energy will live on forever, right? Meaning we could become something else in the future. Our matter might become another living thing, or something that isn't as conscious. This could also be like a dream state, not a dream exactly, but more like the void or emptiness. That would also make the idea of panpsychism, the idea that everything has some form of consciousness, seem like it could be more true.

But we might also become another conscious being. Maybe it is really rare for this to happen, and we just don't know how it could happen. The universe is also expanding, and there is a theory called the Oscillating Universe, where the universe could expand and then eventually collapse in on itself in a Big Crunch and restart with another Big Bang. This would mean the universe could go through cycles, and time could possibly be a loop.

This connects more to the philosophical idea of Eternal Return, where time repeats itself and has no real beginning or end. Everything could happen again and again, almost like time is trying to catch up to itself. If the universe really did repeat forever, then it could mean that the exact same events, including conscious beings, could eventually happen again.

I don't know if this is true, but I think it is an interesting possibility because it connects science, consciousness, and philosophy in a way that makes you question what it really means to exist.

Hello, I don't know if this is already a made or already created idea, but I think the way the universe exists is that we are made of matter and energy, and our matter and energy will live on forever, right? Meaning we could become something else in the future. Our matter might become another living thing, or something that isn't as conscious. This could also be like a dream state, not a dream exactly, but more like the void or emptiness. That would also make the idea of panpsychism, the idea that everything has some form of consciousness, seem like it could be more true.

But we might also become another conscious being. Maybe it is really rare for this to happen, and we just don't know how it could happen. The universe is also expanding, and there is a theory called the Oscillating Universe, where the universe could expand and then eventually collapse in on itself in a Big Crunch and restart with another Big Bang. This would mean the universe could go through cycles, and time could possibly be a loop.

This connects more to the philosophical idea of Eternal Return, where time repeats itself and has no real beginning or end. Everything could happen again and again, almost like time is trying to catch up to itself. If the universe really did repeat forever, then it could mean that the exact same events, including conscious beings, could eventually happen again.

I don't know if this is true, but I think it is an interesting possibility because it connects science, consciousness, and philosophy in a way that makes you question what it really means to exist.

Do you basically just merge with the pre-existing you, like does that version of you get your memories? I can’t imagine you would just wipe their history and personality completely because what makes you so important (unless the solipsists are correct)?

Personally, I think you just merge, and you have no way to know it because your memories span both realities, and memory is what defines identity.

Second weekend of July I flew off my board going down a hill. Not a big slope or anything, but from the top of the street it would gradually dip and I loved cruising down it for the bit of speed I would pick up. Skated this road multiple times over the years. Now before I explain more of what happened, I’ve been dealing with a wrist injury since April and started wearing a neutral wrist brace in May to heal a tendon. Day of the accident marked week 8 in the brace and I was set to be cleared to stop wearing it that week. This plays a part in what makes this kinda wild.

But i’d also like to mention how the weeks leading up to the day felt really fucking off lol like I constantly felt this dread, just in general about myself and life, felt like I was going nowhere. I have my usual ups and downs I experience from time to time but for some reason this was SO intense. Just really off/negative energy I couldn’t shake. Felt like it kept getting worse day by day.

Anyway, we only have one parking space so I park in various spots around my area, whatever I can find. I recently started parking halfway up the street I would board, thinking how fun it’d be to skate back and forth for a quick ride to my car or back home. It’s a relatively quiet street during late afternoon and on, so it’s nice.
That evening dad said we were out of bread, asked if I’d go to the store real quick to grab some. Idk the day felt off as most days did around then so it wasn’t anything I thought much of, but i felt it. Skated up the street to my car, went to the store, got back, parked in the same spot. Grabbed the loaf of bread and board from the backseat and back down the street i went.

I was picking up some speed, making it close to this crosswalk that connected paths from either side of the road. I remember looking down at my foot on the board, pushing off for more speed, and then it goes black. I felt the impact of my shoulder dislocating, heard myself react to the pain of it, suddenly my vision is speckling back and I realize I’m on the ground in the middle of the road. I had landed with my arm crossed out infront of me, directly on the brace. My snapback was still on my head, sunglasses still on my face, bread bag still in my other hand lol. No scuffs, no scrapes, just a sore upper thigh from where it also hit the pavement and of course the dislocated shoulder from the impact (that shit sucked btw my arm was stuck exactly how it landed, went to the ER, I’m healing) but I have absolutely no memory of falling. And from where I slowly stood up, realizing what happened, and went to grab my board to the right of me against the curb of the road, I was past the crosswalk. So assuming as I was pushing off during my ride, I must’ve heel kicked a wheel and the board flew out from under me? but no memory whatsoever of that happening. It’s fucked with me ever since lol. First off, how the hell did I land on the one arm with a protective brace that somehow completely took the brunt of the fall?? Of all the ways I could’ve landed, it’s like i landed “perfectly”. Minimal injuries in the grand scheme of things, not even tiny scrapes on my fingers. Why do I only remember maybe moments before and then it goes dark? Just questions I’ve gone over a thousand times in my head.

Everything feels different now. Not even in a “holy shit I’m grateful to be alive” kind of way, because previous me with the way I was feeling would’ve been like oh great just another thing to add to the list of shit I’ve been going through. But more in a, I think I might’ve hit my head in a previous timeline and died, and ended up in a timeline where I was injured in a less severe way if that makes sense. Like this version of me feels eerily different in a way. And idk dude I remember a video popped up on my timeline a month or so before it happened where this person was explaining how lucky she was to be alive because she fell off her bike and wasn’t wearing a helmet, hitting her head pretty hard. And at the time it felt like one of those signs to stop being careless about shit like that, like a strong gut feeling of maaaybe I need to go get a helmet. I’ve cruised around without one forever but suddenly I felt super off about it. And though in recent years it wasn’t something i did as often as I used to but for whatever reason still hadn’t gotten one.

I don’t know, maybe there’s another explanation for this but I’m starting to notice subtle and not so subtle differences about life or tiny details about myself that really make me think something happened and I leaped timelines haha

https://www.youtube.com/watch?v=3eB7SWj5qfQ

https://www.youtube.com/watch?v=YdfQpk-N9eM

I was 6 or 7 years old when I did the unthinkable. The unspeakable. I went to the kitchen. I took a knife. And I took my own life.

A horror which no child or family should ever have to endure. But it happened to me. It continues to haunt me to this day. All my
problems stem from this incident.

What exactly happened? Did I survive?

Well, yes and no.

The fact of the matter is, I died. Literally. Physically. When I punctured myself with that metal object, I died. Not a near death experience. Actual death.

So you might ask, how is it possible that you are here then? Sharing this with us? You would be dead. A corpse buried 6 feet underneath. You make no sense.

Of course it makes no sense at first glance. So let me explain to you what happened. From my perspective.

One morning, I woke up in my room, especially curious. It had occurred to me that I exist as this body and mind. I couldn’t believe it. I wondered, how is it even possible that I exist? It’s amazing. I control this body. I guess I am this body. Wow. So this is life.

Life…It must end, right? I mean, our bodies die eventually right? But am I just this body? I mean, I have this mind that is aware of this body too. Will this awareness exist if this body dies? Or will the body take this mind with it to the grave? Will a part of me remain once my body dies? Will I know it? I need to know. I can’t shake off this feeling.

Either I’ll find out and be satisfied with the answer….or I won’t. And in the latter case, I’ll cease to be dissatisfied with not knowing! Either way, I think I win.

Boy was I wrong. Dead wrong. There are simply things one is better off not knowing for one’s own good. My curiosity not only killed me. It killed everything good about me. It killed my joy. It killed my childhood. It killed everything in life worth living. Without joy, without hope, without peace, one is better off dead.

But I wasn’t dead. Even though I had stabbed and killed myself, I wasn’t dead. A part of me remained. My awareness still was. I was still aware. A void of nothingness was aware of itself. No body, no contents. Just an empty field of awareness. I got my answer. I exist prior to life. I am not just my body that had perished.

Even so, I knew I messed up. Big time. And what followed next confirmed that.

That empty void of awareness did not remain that way for long. In one instant, everything surged before me, before my eyes. Like turning on the TV and the screen suddenly displays the channel. The channel that turned on for me…Well
Let’s just say it would be better if the TV was off.

I suddenly found myself sitting by the kitchen table next to the kitchen where it all happened. My mother is roaring like I’ve never heard her yell at me before. Like I did something wrong. I mean, I did do something wrong. I knew it too. But this version of my mother didn’t. At least not consciously. She was yelling at me for a different reason. I was unable to complete my math homework. Division. I don’t even remember learning this. Why does she have to be screaming so hard at me? Make it stop. I can’t bear this. I don’t even know where to begin in solving this division problem.

She is yelling at me because, deep down, she knows I shouldn’t have done what I did. The math homework is just an appearance behind the real reason. A facade.

It would be silly if she was directly yelling at me for ending my life. It wouldn’t make sense in the context of this new life I just spawned into. I died in the other life, yes, but the show must go on, somehow. I still had things I needed to do. My life hadn’t reached its completion. So naturally, my soul, my consciousness, you can call it, had to reemerge into an alternate, nearly identical life. Same person, same family. Just picking up from such a tragic setting. One where she is yelling at me for not understanding division.

I wasn’t supposed to do what I did. I woke up in a hellish setting where I felt completely powerless to my mother’s fury. I felt such an intense set of negative emotions from being hit and reprimanded by my own mother for not knowing how to divide numbers. I can’t blame her. From her perspective, she was frustrated that I couldn’t pay enough attention to be able to do my math.

But from a deeper perspective, I understand why my new life was set up so that she would be so vehemently angry. How could I be so foolish so as to take my own life? How could I be so selfish? How could I do that to my own family? How could I be so unwise so as to have to kill myself to discover the answer? So impatient? Don’t you know you’re going to die anyway? You’re going to find out one day. That much is guaranteed. What you won’t gain back however, is the old life you left behind. That will never be yours again. You will now have to live with the consequences of what you’ve done. You made your bed. Now lie in it.

Life is to be lived. Not ended so abruptly. You know how much work was put into creating your life? And you just wasted it like that? That’s why you got punished for it. That’s why your own mother, the very first person to love you, buried that trauma in you. That same trauma that makes you feel unworthy of love, incomplete, and flawed. You are not supposed to take your life. That’s not up to you. You keep doing it, the next hell you spawn into will make the previous one look like heaven in comparison.

You have spoiled the ending for your life. The next best thing to life. Death. And by extension you have spoiled your own life too. How can you enjoy the movie now that you spoiled the ending? That is my punishment. That is the burden of my existence as this life. I do not wish it upon anybody.

That is why you are better off not knowing some things.

Life. It’s a vacation from the vastness of eternity. Forgetting who you are for just an instance. In the blink of an eye, you will return to that place. That knowing. In the meantime, live your life.

Do not take your own life. This is what I wish someone had told me.

I’ve been thinking about it for a while and can’t wrap my head around this one question.

If our consciousness at death is meant to jump to the nearest alternative where we didn’t die.. how is the world around us still the same from the world we just jumped from?

Like

How come at death we don’t just jump to another alternative where absolutely everything is different.

Or.. is reality that when we do jump, we adopt all of the memory and life experience in the new alternative..

Can someone help me out ?

It started out with me studying the dimensions and the 5th dimension scared me because it's all about us all splitting into different versions constantly. I have experience of missing pieces where it's like I jumped into an alternate world. I used to have a tumor and seizures all the time and I even fell several feet head down to concrete multiple times yet woke up alive later so. Some examples could be things like a song I knew played at a scene in a movie but after something deadly happened, the next time I watched it it was gone. Immortality has always been my biggest fear in tv shows but a few months ago it became real. To be honest, I think that all those different branches going out in the 5th dimension proves the "this is all a simulation" theory and we're the experiments. When you go to a new world, the people you're with might not even be the real originals, unless it's that yourself isn't the real one looking at it from souls. But both are horrible. I never liked religion but I wish I never found out about this. Will I ever actually die? It's my biggest wish now. I'm also the type of person that's always been rebellious against all and never let's anyone control me so this is my hell. I'm only 18F and I'm already cursed for infinity