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You can see when they buy or sell a position. It's on the blockchain so it's all public. And yes, copying positions is called copy-trading and it's extremely popular.

Orders aren't public though. Only the actual trades. This is important because by the time the trade is known by others very often the edge is gone. Especially if you have other people watching the same trader and they all try to copy the trade at the same time.


Could the "trend-setter" not just buy, sell, buy, sell and own everybody who moves after him?


Yes. This is why copy-trading often fails.


If it takes so long for the actual trades to show up then why is copy-trading popular?


Not all strategies are low-latency, so you can copy trade someone with a buy and hold approach. For example someone you think is an insider or whale who might influence the outcome.


Yup, you nailed it. This was my exact concern.


It wasn't about having the videos held hostage, but about the ease of accessing and viewing them. I didn't want to do DVDs at all - frankly, that's just a bad experience to go through 200+ hours of unlabeled video.


Hi gwern!

My siblings are very much not developers. That's a lot of data for them to download, store, and figure out a way to view.

I was worried they'd just see a list of filenames and not put in the effort. By creating a streaming experience, I thought they'd actually watch them.

You might be correct that Gemini could have helped, I didn't test it, but much of the knowledge of who was in a scene, where it was, and why it would matter is inside my head. I doubt any model could effectively label locations and people over 20 years of video.

As to the opportunity cost - I'm currently looking for work, so mine is undoubtedly lower than yours!


> My siblings are very much not developers. That's a lot of data for them to download, store, and figure out a way to view.

I wasn't suggesting anything about your siblings, but you, who are a developer. I was just talking about the actual download step, not what you did after that. (Obviously you were going to host them somewhere else in some other form. Probably not DVDs but a little quickie website or maybe just a Flash drive with a HTML file index, say, I don't know, lots of options here to make it user-friendly for your siblings on Christmas Day. The hard drive or Flash drive idea has the benefit of LOCKSS, especially if you use up the spare space providing PAR2 FEC.)

> I doubt any model could effectively label locations and people over 20 years of video.

Actually, Gemini is highly promptable with a large context window and a single still image only takes up ~300 tokens IIRC, so I think that you could probably do so! Just include, say, 3 photos of each person over time with a natural language description, and 1 photo of each location, and that might be enough to get back useful labels. Gemini can even do bounding boxes. (Google is quite proud of its vision and video analysis capabilities.) And you can run multiple passes or split up videos etc.


Ah I understand you now. Yes I could have had a service do the digitizing then only done delivery myself. And given the time investment that probably would have been more sound. I don't think I'd do it all myself if I did it again.

I didn't know Gemini models were that capable. I admit I'm still skeptical about this approach though - even if it were capable of accurately labeling people and locations across decades, there's no way it could know when a scene is of personal interest. I kept a running log for each sibling as I was manually doing the labeling, knowing what they'd want to see, which presumably is only possible for me and my siblings to do with any accuracy.

If AI could ever do that then we've definitely hit ASI!


> I kept a running log for each sibling as I was manually doing the labeling, knowing what they'd want to see, which presumably is only possible for me and my siblings to do with any accuracy.

But you could feed that back in! Just write it down. It's all tokens. As you read over descriptions and note down key pieces of family history or per-sibling details, that provides information about better annotating the next video for possible points of interest. And you can chat with the LLM and write down more general principles. It's not like a LLM like Gemini doesn't know an enormous amount about family life and things of sentimental value, and can't make good initial guesses. And when you do this, you still haven't used up more than a small fraction of the context window with these image references and text profiles and principles...


I'm sorry to hear that. I agree. I'm fortunate. I hope that you can enjoy the memories as best you can.


Bro, you're paranoid. I'm the author. Look at my blog. I write my stories myself. I wrote a geoguessr article last year that hit the top of HN.

Yes, I've used VLC. But I'm using a fairly new machine and hadn't installed it yet.

Why does it strain credulity to make this myself? I explain it step by step. I enjoy using AI to build stuff myself.


I'm glad you enjoyed it!

I posted this 5 days ago, and it didn't seem like anyone saw it then, so I'm happy folks are enjoying it now.


I would absolutely try that first.


It's the Big Video8 cartel astroturfing.



Really? I'm the author and I can't conceive of any way this could be considered marketing. It's a personal project, I'm selling nothing.

But I am looking for work, so hey, if anyone is hiring and they enjoyed the post, then email me.


Maybe you could ask ChatGPT how to get more gigs saying ChatGPT every third paragraph.


I'll have to try that next time


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