521–530 of 553 posts
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AFAICT intelligent people are still saying that apart from short-hop 10 seater planes, electric flight is impossible.
Yeah, that’s what they say if you press them on it today. They’ll keep moving the goalposts as soon as it becomes too obviously wrong, and then never admit to having been wrong in the first place. ;)
Training AI on CPUs faster than on GPUs (SLIDE): https://techxplore.com/news/2021-04-rice-intel-optimize-ai-c...
How is it working exactly ? Since it is a change in the algorithm, could it be put on a GPU to go even faster afterwards, or is it too sequential for that ?
If you (or anybody else) happens to be a graphics programmer with experience of implementing the bounding-box tree traversal common in CUDA implementations of ray tracing please get in touch with me as there as a good chance an rusty old 1080 can defeat most expensive xeon on the market since it has more memory bandwidth than Intels part. If you ever wanted to piss on Intels leg with a multiple week-end project please get in touch. email in profile. There is a slim chance that this will actually help deep learning.
1) Fiducials. This makes it so incredibly easy to map the physical world to the digital world, and vice versa. I guess it’s not under the radar, but it just feels like such a superpower. Sub pixel accurate 6dof tracking & unique identification for anything you want. It’s like a cheat code for computer vision as it makes the whole problem trivial. I half expect fiducials on all public streets within 10 years. On every…
> Fiducials If you mean what I think you mean (tiny marks on everything that encode information to help computers figure out what they're looking at), I agree. In particular, I've long been waiting for someone in self-driving sphere to give up on trying to crack the problem with just imaging the world as it is. In a saner world, countries would already be standardizing machine-readable markers on roads and posts and…
Because it's incredibly vulnerable in an adversarial world. (Human readable has a human in the loop, and so can adjust for the worst adversarial attacks. Machine readable can't)
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> But not in very cold environments. This depends on what you mean by "cold" and there are several other factors as well. For one, they work great below 28 degrees. For the area between 28-34, there can be issues. In this range, water will more readily condense out of the air and form ice on the outdoor unit. And if it is raining and it is 34 out, you'll really have some ice. But below 28 degrees... any water in the…
Is there some reason why heat pumps don't spray some antifreeze/salt-brine on the evaporator to clear/prevent ice? Either alone, or in conjunction with heating. You seem like the right person to ask, and this idea has been stuck in my head since seeing the technology connections video.
Ice build up and "defrost cycles" are not really an issue if managed right. But the issue is people buying the cheapest option and expecting the greatest performance.
HVAC tech knowledge is also an issue. Most techs are going to do the bare minimum in order to close out a job and move on to the next project/service call. There is really no incentive for educating end users on how their "system" works.
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> Modern homomorphic encryption schemes only have a ~100x performance hit. Really?! Now I'm curious. If I have a simple program for an 8-bit CPU @ 1 MHz, when can I run this program on a virtual machine using homomorphic encryption, under a reasonable runtime? Is it possible yet? If the performance hit is only 100x, the runtime should not be much longer than the actual chip. But the last time I checked, the hypotheti…
8 bit is definitely doable today, fast There are basically 2 strategies: - do fast operations, with a limit on how many you can do. This is called Leveled Homomorphic Encryption, with CKKS being the most popular scheme. Microsoft open sourced a lib called Seal for it. - do unlimited operations, but with extra overhead. This is called Fully Homomorphic Encryption, with TFHE being the fastest implementation. My company…
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Indeed. The amount of "new tech" around auth leaves me head scratching. So many of the problems these start-up types are trying to solve have been solved by something like a well maintained Active Directory 10+ years ago. Group permission, PAM, SSO, etc. It's like these developers have never been exposed to Active Directory ever in their life...
I'm not sure I understand your comment. Active Directory is Microsoft's proprietary tech that is a modification of the Kerberos standard, reimplemented most notably in Samba, but client solutions (open and proprietary) also exist. Group permissions predate AD by decades, PAM by a few years. SSO in today's form is a web phenomenon, so a web-oriented solution makes more sense, and there is a lot of work being done in t…
And LDAP, and some DNS, and certs, etc. It's not just Kerberos; you're sounding ignorant here.
>Group permissions predate AD by decades
No one said otherwise, but it goes beyond basic POSIX groups with things like nested groups, delegated group permissions, etc.
>SSO in today's form is a web phenomenon
So is AD's...
Basically, you're proving my point.
1. GNU Name System to replace the DNS in a backwards-compatible manner, with delegation to cryptographic public keys (instead of IP addresses) and with strong guarantees against known attacks against the DNS (DNSSEC doesn't solve everything). https://gnunet.org/en/gns.html 2. Semantic sysadmin to declare your intent in regards to your infrastructure no matter how it is implemented (i.e. with a standard specification,…
PM lead for PowerShell here, thanks for the callout! I'll take "isn't the worst". ;) I'd love to get more of your thoughts around how PowerShell might be more useful for the kinds of scenarios you're thinking about. We see a lot of folks writing portable CI/CD build/test/deploy scripts for cross-platform apps (or to support cross-platform development), but we're always looking to lower the barrier of entry to get int…
1) Fiducials. This makes it so incredibly easy to map the physical world to the digital world, and vice versa. I guess it’s not under the radar, but it just feels like such a superpower. Sub pixel accurate 6dof tracking & unique identification for anything you want. It’s like a cheat code for computer vision as it makes the whole problem trivial. I half expect fiducials on all public streets within 10 years. On every…
Regarding the boring company, i have seen at least one engineer's breakdown of their tech and it appears they are using off the shelf tunneling equipment and their costs are in line with and sometimes higher than several other established companies that dig smaller tunnels like the Boring Company does. It seems the only competitive advantage they have is the bully pulpit that is Elon Musk and his blind followers that…
Allergy immunotherapy. I started a company on the backs of this treatment. The way we treat allergies today, with Zyrtec and Claritin, is medieval medicine. It doesn't solve the underlying problem; it just tries to cover it up. Allergy immunotherapy is the future. Most people don't realize that allergies are now a curable disease. In the future, taking Claritin for allergies is going to seem like taking Tylenol for a…
https://ipfs.io/ seems pretty cool. I've been meaning to check it out, but not seen any uptake yet.
I want to see a variation of Signal to add BlogPost like interface. It could then use IPFS to host "Public Facing" posts. People could pin - or pay for pinning - their posts. IPFS is what I hope will lead to further democratization of the internet.