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wbsun

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Orion PDA – A pocket device to take notes and play music

orionpda.org
5 points·by wbsun·2 mesi fa·1 comments

comments

wbsun
·2 mesi fa·discuss
5 trillion IPO of three companies this year! They still need real money to buy the offered stocks, I am wondering which markets will be sold in order for investors to get the cash.
wbsun
·2 mesi fa·discuss
I wish people'd report metrics like "transactions per second, 99.x% availability with N secs/mins p99 latency, ..." when describing how practically useful and how effective a real-world banking/transaction system is, which further proves the practicality of the programming language.
wbsun
·2 mesi fa·discuss
> We serve over 300,000 businesses. We processed $248 billion in transaction volume in 2025 on $650 million in annualized revenue

> The system we've built has worked well for years, through hypergrowth, through the SVB crisis that sent $2 billion in new deposits our way in five day.

This is a strange way to describe a transaction processing system with total amount of money it processed. The reliability or scalability is not measured as O(n) dollars. In theory, $248bln or $2bln can be done in one transaction although I know it is not the case in reality. It would be impressive to see the typical system design properties like transactions per second, latency distribution, etc.
wbsun
·4 mesi fa·discuss
It’s less about 'old vs. new' and more about the evolving trade-offs dictated by the constraints of the era. There have always been engineers trying to squeeze every last drop of performance out of the bits available to them.
wbsun
·4 mesi fa·discuss
The blog is new but the paper was submitted almost one year ago: https://arxiv.org/abs/2504.19874. Anyone has ideas if this is already implemented in many models (at least Gemini, I guess)? If that's the case, can I expect cheaper RAM for my computer :D
wbsun
·4 mesi fa·discuss
In SF bay area, there are always gas cars trying to show off their horsepower especially during rush hours, no matter how slow the traffic is. That noise is more annoying than tires.
wbsun
·5 mesi fa·discuss
> Palantir's secret weapon is the closeness and affinity to the DoD.

Is it a secret? I got an impression that it has been well known. How could you get any big number contracts without former secretaries or retired generals in your board or in your ‘consulting’ team?
wbsun
·5 mesi fa·discuss
Oh I am more than happy to tell people how I took down entire Google Cloud 11 years ago. I mean, of course to the level of details Google is comfortable with to share externally :)
wbsun
·5 mesi fa·discuss
No, sorry, I wouldn't buy EVs from any US company any more until they are matura enough that the model production surpasses at least Tesla Model S+X since released. Their reliability just suck. I don't want to waste my life again and again in those months-long waiting of service appointments, annoying issues every where and every day, hiring Lemon law lawyers and other BS.

Data points:

- one Model X

- one R1s

- My neighbor: one Model X, one R1t

- My collegemate: one Model X
wbsun
·5 mesi fa·discuss
Nice, now you can dd it to your boot sector and ... Wait, it is 2026, there are 1000 ways of booting and memory mapping on so-called unified ARM architecture @,@
wbsun
·6 mesi fa·discuss
These people are not going to take your job, the people who uses tools smartly while having the knowledge and experience in highly reliable distributed systems are. If human in the loop is not required any more, nobody is going to keep their job.
wbsun
·6 mesi fa·discuss
Making 20 y/o CPU with today's process? It is cool but yeah not really a wise business decision.
wbsun
·6 mesi fa·discuss
Oh running Linux on a MCU without MMU.

I feel there is a gap between MCU and modern CPU, and also between the software running on top of them. The missing piece is a mid-size computer with: - A processor, single or multi-core, with computing power like 20 years ago, but modern fabrication process. Maybe without MMU for simplicity. - RAM between 100MB~1GB and DDR2/3 bandwidth. - An OS designed and implemented for this type of hardware rather than tailored Linux.

I don't think you can use it for working or your daily entertainment, so I guess not a good business to attract interests.
wbsun
·7 mesi fa·discuss
My experience: customers with $$$ will always believe they are very important, so important that losing a single bit is the end of world.

So you may not want to convince customers waving huge $$$ checks that their data are not that important. But instead, providing options to keep them once they realize that: their pockets are not that deep, and they are also totally ok losing some data.
wbsun
·9 mesi fa·discuss
Does their status page depend on something that is down already, so the page just fails static now hence no new updates?
wbsun
·9 mesi fa·discuss
Am I the only one who doesn't want to type a lot while browsing? (I comment on HN very rarely too...).
wbsun
·3 anni fa·discuss
I like the old times when you could assume everyone around you is smarter than you, so collaboration and communication were never an issue. They never rely on "experts" in other teams to collaborate, they quickly and easily pick up how other systems work in depth themselves. Smart people just shine and work together to create amazing stuff.

Nowadays, you need to explain to people why unit test is needed, why you can't use production as the first place to try a risky experiment, and rely on 20 experts, one in each tiny service, to figure out and to deliver a tiny feature with bloated timeline and messy quality.
wbsun
·4 anni fa·discuss
Great, let’s make a subscription based service to help people easily self-host…