Recent submissions

Comment · 1 month ago
From what I've heard, fare compliance used to be relatively high but dropped massively (alongside ridership) during COVID and hasn't really recovered.
Comment · 2 months ago
A few years ago, I was itching to either brush up on Java (which I hadn't used since around v1.8) or learn a new one. (eg Golang, Rust, etc) In light of Oracle owning Java, I suspected it would face a long, slow decline and would eventually fade into Perl-like obscurity and decided to spend my time elsewhere. Also, I didn't want their nagging runtime updater on my system anymore.

Haven't regretted that decision at all and it seems to be playing out about how I expected. (Except LLMs make rewrites into other languages more tractable so the slow decline of Java may accelerate)

Comment · 4 months ago
Agreed, how could we not have datacenter capacity for the GPUs when Meta has shown that you can go from a bare field to an operational datacenter in about 3 months by using tents instead of buildings?
Comment · 5 months ago
It's been quite a while since I first heard about it, but IIRC they were seeding cryptographic PRNGs with entropy from multiple sources, one of which was allegedly this art installation.

Seeding PRNGs with sufficiently unpredictable data was a real security concern for a while. New cloud instances have a small entropy pool space for attackers to enumerate due to lack of a real source of randomness. (See the Debian/OpenSSL issue for what can happen when your entropy pool is too small/predictable)

One fun fact about XOR is that anything XOR'd with a uniform random distribution results in a uniform random distribution, so there isn't any harm in mixing additional non-attacker-controlled entropy sources in as long as at least one of them is sufficiently unpredictable. The lava lamps provide a potentially hard-to-predict source of entropy for this, but if it's not available then it certainly doesn't "take down the internet". They'll still use packet arrival timing, interrupt timing, etc to seed their CSPRNGs.

Comment · 1 year ago
Ian Banks' Culture series is the only one that comes to mind.
Comment · 1 year ago
Comment · 1 year ago
That's not countering the argument that steering is what is preventing the bike from falling over rather than the gyroscopic effect of the wheels. You'd have to tie off the handlebars with a static line before rolling it in order to prove that it was the gyroscopic effect keeping the bike upright.
Comment · 1 year ago
IIRC if your brokerage reports everything to the IRS properly, you only need to fill out net short- and long-term capital gains on your schedule D rather than specifying every single transaction on a bunch of Form 8949 copies.

Not sure if Double's underlying brokerage is reporting everything necessary for this to be the case though, as I believe some brokerages don't.

Comment · 1 year ago
This is exactly how Toyota's AWD works in the Sienna these days.

It gets 35mpg city and highway, 1mpg less than the front wheel drive Sienna (which, to be fair, is also a hybrid)

Comment · 2 years ago
If your threat model includes someone with a quantum computer intercepting all of your traffic and storing it to decrypt later, you probably don't want to share your keys over a non-PQC channel unless you can guarantee that they haven't started eavesdropping on your traffic yet.
Comment · 2 years ago
They fought the FBI over unlocking iPhones when they could have just quietly complied with the request. I'd say they have a decent track record.
Comment · 2 years ago
IIRC backpropagation was a very significant breakthrough on how to update weights when training neural nets.
Comment · 2 years ago
I want my guests to be able to cast to my TV, add songs to the Spotify queue, etc. As far as I can tell, these sorts of features work via broadcast frames and thus require the relevant devices to be on the same subnet.

Things like my printer and wifi-connected grill live on a much more restrictive VLAN. (with some firewall rules to allow devices on the trusted network to still print to my printer's hard-coded IP address)

Comment · 2 years ago
Amazon Fresh also used it in a handful of locations. (and still does) IIRC there are 2 Whole Foods locations that use it as well.
Comment · 2 years ago

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