Computation is the difference. In Lean, applying the universal property of the quotient (`Quotient.lift f Hf`) to an element that is of the form `Quotient.mk a` reduces to `f a`.
This rule is fine in itself, but the Lean developers were not sufficiently careful and allowed it to apply for quotients of propositions, where it interferes with the computation rules for proof irrelevance and ends up breaking subject reduction (SR is deeply linked to computation when you have dependent types!) [0]. It is not really a problem in practice though, since there is no point in quotienting a proposition.
Unfortunately education everywhere is getting really hurt by access to AI, both from students who are enabled to not their homework, and by teacher review/feedback being replaced by chatbots.
Slightly fixed title: "One A.I. researcher is negotiating a $250M pay package in made up money that Meta can produce by typing zeros into a spreadsheet."
Paying with stock is a neat option for companies that are projected to grow - the very reason why all of big tech desperately wants to be perceived as growing - since it doesn't cost them anything, since they can dilute existing stock holdings at will by claiming the thing they are buying with new made up stock will make the company that much richer.
So you as a potential investor should ask yourself, will this one employee make Meta worth $255M more? Assuming they are paying $5M in cash and the rest in stock.
What do you mean by "Paris"? If it's the City of Paris (Paris intra-muros), then it's not comparable to London in terms of size or density. IMO, for the purposes of this discussion, Paris should mean the whole Paris region, since most of the people live outside the actual city limits. And in those areas, access to public transportation is hit or miss. Some people are close to suburban trains, but many are not.
Then, another consideration, which is also very important, is what the available transportation actually looks like. By that I mean how often are there trains, how reliable are they? And, in Paris and probably Central London, too, are you actually able to get on board, or do you need to wait 3 trains packed to the brim?
I don't know about London, but in Paris, the suburban trains have quite poor punctuality.
Note that most car traffic in Paris is actually people from outside the city proper, so those who are most affected by these transit issues.
Additionally, a lot of traffic also goes from suburb to suburb, which, currently, is a terribly bad joke transport-wise. When I was in college, the drive from my parents' house was around 20-30 minutes. Public transit was over one hour with multiple changes, one of which had around one minute of leeway before a 30 minute wait. They are building new circular lines around Paris, but they won't be ready for a few years.
As someone who ever only walks or takes public transit I'm all for limiting car noise and pollution. But what I'd love to see is some form of improvement of the offer (a carrot). Riding around packed like sardines in trains with questionable reliability is a tough sell. I'm lucky enough I can modulate my commute hours to avoid peak times, but not everyone is so lucky. Right now, the city is mostly spending money on making driving hell (all stick).
And bikes are fine, I guess, if you have where to store them. I wouldn't leave any kind of bike unattended around my office. There's also a bike sharing scheme which used to be nice, but for a few months now it's basically impossible to find a usable bike. And I tend to avoid peak times for those, too.
I think we do in practice apply 0mph (i.e. banning cars) in some major cities, turning roads into pedestrian areas! 0mph happens!
It's obviously a trade between various participants, who have their own interests. 30km/h limits have had good success. If people think the number of fatalities is a problem, there's a solution waiting for you.
You're not familiar with the geography of Australia, huh.
A) They're not growing mangoes in the desert.
B) They're pretty fucking terrible at water management, google the Murray - Darling and learn you some Australian water management.
Every single person which was raised up in the USSR-occupied country, who lived through the collapse of the Soviet Union and then in their independent countries, can repeat this story.
The corn that gets turned into biofuel isn't edible without further processing into maize derived products, so in a crisis scenario, hope you can still highly process corn.
It's pretty common for people to stay in their summer cottages for a week or more, several times a summer. Renting a car for all that time gets very expensive, and it will be just sitting idle most of the time. At that point you may as well just buy a cheap used car for the same yearly cost.
The need for car ownership would plummet if we had self-driving cars that can autonomously drive back to the city, and to pick you up from the countryside.
Yeah, in my admittedly limited experience the grade I assigned in a live code test (slightly more than fizzbuzz, but no tricks or algorithms required) matched up very closely with real world performance.
I even have knowledge of some of the fails as people higher up the chain decided to hire them anyway. They didn't do well from the feedback I received.
Instead, there's a push to reduce limits ever closer to zero.
30mph was close to the sweet spot and had been for decades. Or it would have been with a reasonable level of enforcement.
But as the ideological and/or climate-driven war on cars ramped up there's been a big push to reduce ever-more areas to 20mph, which is just too slow, especially when deployed widely/indiscriminately as it has been in Wales. (Used very sparingly, e.g. outside schools, 20mph limits were a good 'take particular care' signal to motorists - but that effect is lost when they're widespread)
Is it really about safety or is it about 'fuck cars'?
As an average consumer/data hoarder, why not store those on cheap spinning HDD's? They can stream the data fast enough, and modern NAS hardware gives you easy RAID too. You don't really need super-quick random access to multiple TB's of data, so HDD storage is probably good enough.
If you look at this 2023 report[0] you can see the following sort of stats (page 34):
between 2012-2023 there were the following evolution in the number of road deaths per year:
- 60% drop in Lithuania
- 50% drop in Poland
- ~38% drop in Japan
- 20% drop in Germany
- 20% increase(!) in Israel, New Zealand and the US
so abstractly, looking at what those countries did in the past 10 years and considering whether changes would work or be applicable for you (and maybe not doing whatever NZ or the US is doing)
For Japan's case, they applied a lot of traffic calming[0]. In particular, in 2011 Japan changed up rules to allow for traffic calming through a simple and cheap method: setting the speed limit to 30km/h. [1] has a summary of the report.
Now, one thing I do know about Japan is that their qualification of road deaths is ... dishonest is strong but it's technical. If someone is in a car accident and survives a couple of days, but dies later from complications, that is not counted as a road fataility (IIRC it's a 24 hour window thing).
I would like to point something out though. Between 2003 and 2016 car accidents nearly halved (from 940k to 540k). Between 2013 and 2023 fatalities according to their metrics dropped 40 percent.
> In the case of corn and soybeans, there is a really good reason why they are grown so much: Because that's where the market is. It is what people want to buy. They are the most competitive and highest value crops in the regions they are grown.
Given the fact that they're subsidised, I doubt that they're the most competitive crops. Competitive crops don't need to be subsidised.
Also, if they're so competitive, then why has the demolition of USAID caused them economic harm? A competitive product doesn't rely on a taxpayer subsidised buyer to make their market.
> When YouTube deletes a video it doesn’t even leave the title in your playlist
I think this was a very insidious decision of YouTube. It's like they want to pretend that videos deleted for ToS violations never existed, because by default the playlist does not even display the "holes" that it now has, either.
That is how you get Oracle source code. It broke my illusions after entering real life big company coding after university, many years ago. It also led to this gem of an HN comment: https://news.ycombinator.com/item?id=18442637
If he provides a good service he probably deserves it. Your next question is probably either “if one person has all the money, who has money remaining to spend” or “inequality is bad” (if you have given it more thought).
To either question the answer is: current monetary system doesn’t allow this to happen and inequality is okay as long as the floor is increasing for everyone (to an extent).
Zucc giving 1B to a relatively unknown researcher is the redistribution that people a should be in favour of. Just that it’s not redistribution to them.
The bigger picture is that this investment is towards furthering good LLM research which will again benefit everyone. This transaction seems to be good in all angles.
