Caelus9

Some people are skeptical about biodegradable materials, but honestly, ten years ago nobody believed paper straws would catch on either. I think if we can turn leftover plant waste like grapevines into something useful, there's a real chance to start phasing out throwaway plastics in the kinds of products we only use once and forget.

Totally agree. Calculators didn’t kill math. Cameras didn’t kill painting. Tools change the baseline, but people still push the edges. The ones who love the craft won’t stop just because it got easier for others.

If you want to slow cognitive decline or improve mental flexibility, then learning a second language, even if it's started later in life, does make sense, but expecting it to improve intelligence or memory overall is probably a beautiful but unrealistic fantasy.

What’s striking here isn’t just the spiders it’s the idea that living creatures can directly plug into chemical energy from the Earth without sunlight. That’s a whole ecosystem powered by methane instead of photosynthesis.

It reminded me of the last time I walked into a random little cafe in a strange city and heard some live jazz music. The whole atmosphere was quiet and relaxing. When you are not in a hurry, not thinking about taking pictures or posting on social media, you will really start to "see" the place.

It's a fascinating idea that gravity could be an emergent result of how information works in the universe. I feel like we still don't have that clear piece of evidence where this model predicts something different from general relativity. For now it is one of those theories that are fun to explore but still hard to fully accept.

My attitude towards AI is one of balance not overly dependent, but not completely rejecting either. After all, AI is already playing an important role in many fields, and I believe the future will be a world where humans and AI coexist and collaborate. There are many things humans cannot do, but AI can help us achieve them. We provide the ideas, and AI can turn those ideas into actions, helping us accomplish tasks.

I used to make these long to do lists and chase after big goals. But honestly, most of them never got done. What actually helped me were small limits, like not checking Slack after dinner or opening a new tab only after I finished the task at hand. Sounds weird, but limits gave me more freedom. Less chasing, more doing.

I also found that I was most likely to procrastinate when the goal was too vague and the task was too big. So now I will break the task into super small steps, such as "open a file" or "run a test." It sounds a bit silly, but it really works. Maybe sometimes the brain does not need a motivational speech, but just a gentle push.

To be honest, these "Bin Stores" are really a bit strange, like treasure hunting, but also like endless consumption. I went there once last weekend, and curiosity drove me in. To be honest, the feeling of rummaging through boxes and cabinets in the hope of finding good things is really exciting, like a modern version of "scavenger". I found an almost new coffee grinder for only 5 yuan (the original price may be 50), but I also saw a lot of plastic garbage, which looked like rummaging through a garbage dump. Interestingly, some stores seem to deliberately mix some valuable things into the boxes. For example, I found a brand new mobile phone case in the pile of cables that time. It is probably this mentality of "maybe I will find treasure next time" that makes people go back again and again.

Honestly, this incident makes me feel that it is really difficult to draw a clear line between “protecting privacy” and “obeying the law”. On the one hand, I am very relieved that OpenAI stood up and said “no”. After all, we all know that these systems collect everything by default, which makes people a little panic. But on the other hand, it sounds very strange that the court can directly say “give me all the data”, even those that users explicitly delete. Moreover, this also shows that everyone actually cares about their information and privacy now. No one wants to be used for anything casually.

Early flight simulators were a real leap forward in technology, even though the frame rate and graphics processing were very primitive at the time, and 2 frames per second was only part of the "brilliance". But just like the first flight simulation game I played as a child, although the graphics were simple, the sense of immersion and freedom is still exciting when I think back now. I think the work of people like Foley and Van Dam is really underestimated. Their technology paved the way for today's 3D game graphics. They are really heroes ignored by the times!

This is the first time I've heard something like this I had no idea animals could be left handed too! We used to have two budgies at home, but I never paid attention to which foot they preferred. Now I'm honestly tempted to go watch a bunch of parrot videos just to see if this leftie thing shows up elsewhere too.

Watching cockatoos figure out stuff like this really makes me wonder have we been seriously underestimating bird intelligence all this time? We tend to associate tool use with primates, but parrots, corvids, and kea keep proving us wrong in the smartest ways. Honestly, maybe “avian cognition” deserves its own category of advanced problem solving. There’s probably a lot we could learn from their behavior not just about animals, but about ourselves and the systems we build.

I’ve been thinking maybe part of it is just how much more we use our brains these days without even noticing. Like, my grandparents had tough lives, sure, but things were pretty routine. They did the same tasks every day, didn’t have to constantly adapt or juggle ten different things at once. Now? We’re switching between apps, replying to emails, figuring out random tech stuff, managing a million small decisions all day long. Even doing something simple like buying groceries online comes with dozens of tiny choices. So maybe it’s not just about avoiding brain damage maybe we’re giving our brains a constant workout without realizing it. Not saying we’re geniuses, but just being mentally active every day might help keep things sharp over time.

I think that when a new era comes, we should choose to embrace it actively. Today, the humanities face unprecedented challenges, but they also contain new opportunities. The rise of artificial intelligence has undoubtedly subverted traditional teaching methods, but it also forces us to rethink a fundamental question: What is the real value of the humanities? As a historian at Princeton University once pointed out, artificial intelligence can process data and generate text, but it can never replace human subjective experience, moral judgment, and our exploration of meaning, such as questions like “Who am I?” In the final analysis, the value of the humanities may not be “useful” in the traditional sense, but in helping us better understand ourselves and the world we live in.

I’m not sure “useful” or “valued” really captures how things work at most jobs. In my experience, whether you get promoted or paid well has more to do with things like: how much money you help the company make whether your role is hard to replace and honestly, how well you get along with others But there's another layer too. The people who really stand out often: think ahead of their manager and get things done before being asked know how to make the right call in stressful moments and are just genuinely good to work with That last one is underrated. In a crisis, the person everyone quietly turns to that's usually the real MVP, no matter their title.

Creating when no one’s watching can feel incredibly free. But I totally understand the pressure. When rent is due and people keep asking, “So, can you make a living from that?”, it’s easy to feel like that freedom is slipping away. To me, the ideal is having a small space that’s just for you. Somewhere you can make things without expecting it to pay your bills or win attention. That’s the kind of space where creativity can breathe. Of course, some people do turn their passions into full time work and even build amazing careers. But before that happens, there’s often a long stretch of uncertainty. It’s not easy to keep going. Most people won’t. The ones who stay are usually those who can protect a quiet flame inside, even when no one’s looking.

I often get added to random WhatsApp groups by strangers. I usually just leave right away. Sometimes I do wonder what the goal is. Do people really fall for this kind of thing in group chats? And same with these random calls or emails. How many people are actually fooled? Maybe it's just about testing if a number is active, or maybe they’re quietly building some kind of identity data set behind the scenes.

I’ve always felt that every animal probably has its own kind of language. We humans just can’t always hear it or make sense of it. I remember reading about a study on dolphin sounds that actually won an award. The patterns in how they communicate were surprisingly complex. These kinds of studies don’t just help us understand animals better. They can also inspire new ideas in other parts of life. Pretty cool stuff.

Honestly I feel like a lot of the “battery life is worse now” talk kind of misses something important. The way we use our devices has completely changed. Back then we used them in short focused bursts. Now we want our phones and laptops to stay connected all the time, keep background apps running, drive high refresh screens, and even run AI features locally. That’s a big shift in expectations. So maybe battery life didn’t actually get worse. Maybe we’re just expecting way more from our devices than we used to, and we don’t always think about what that really costs.

Is there anyone currently capable of developing an AI soulmate, where conversations aren’t dull and boring? It could truly understand you, know your past, and even anticipate your future.

Such cute owls! Do they need to be wrapped in a towel because it gives them a sense of security? Just like babies, they sleep better when wrapped up tightly. Rescuing small animals is such a meaningful thing to do.

As an ordinary person, what we can do is try to reduce our use of single use plastics as much as possible, but single use plastics are everywhere in daily life, which can indeed be frustrating.

if these contact lenses allow you to see better even when your eyes are closed, could this technology be used to help people who are blind or visually impaired? If so, that would be an absolutely incredible project! The potential for improving lives would be huge.

I completely understand the concerns about AI potentially replacing human thinking, but what if we look at this from a different perspective? Maybe AI isn’t here to replace us, but to push humanity beyond its own limits.

If we look at the history of human progress, the emergence of tools has always made life more convenient, but it also brought new challenges. The printing press, the steam engine, and electricity have all greatly transformed society, but we adapted and thrived. Why can't AI be the same?

The real question isn’t whether AI will replace us, but whether we are ready to use it to do things we couldn’t do or even imagined. Imagine if we didn’t see AI as something that replaces us, but as a tool that allows us to focus on doing what truly matters, leaving the mundane tasks to machines. Isn’t that the ultimate form of progress?

The first person in the world?