I’ve never heard this mentioned but it seems like an environmentalist could support increasing total life on a piece of land vs preserving specific sparse species.
I’d rather see a region of land be a thriving rainforest with millions of species vs protecting some specific tree.
I’m really starting to think the only solution is a household mass spectrometer we can run all our foods through. Literally see every constitute of each food.
Maybe we need an X prize for the under $300 molecular food scanning system.
Welcome to the world of broken institutional trust.
Even that wouldn't be sufficient. Look at the heterogeneity in dairy - the same amount of SFA in yoghurt has a markedly different impact on LDL-c compared to butter, likely because of both the calcium content of the yoghurt _and_ the actual molecular structure (non-churned dairy has intact milk fat globule membranes).
I actually think we need to go the other way and look at foods as foods where we have the data, rather than individual components. Most recent dietary guidelines are more "x% of your plate should be vegetables" than "you should consume x% of your energy as cereal fibre", at least in their headline advice.
This is what regulation already does (quite effectively too, at least over here in the UK). We already know that harmful substances aren’t likely to be present in our foods thanks to regulatory checks.
Then we’d be left with checks for substances at levels lower than regulations are concerned with, but I’m not sure why we’d care about that.
Fish has mercury present in it, but increased consumption seems to be associated with positive health outcomes. If the device said “danger, mercury”, what are we replacing it with? Red meat? Sausage? The current evidence would suggest that would be a retrograde step.
Well that would depend on what you mean by “not working”. It seems like the US regulations are generally doing a good job of keeping toxic products out of the food supply.
I’m not sure if your claim is specifically around food colouring. If it is, I’ve not seen any compelling evidence that the food colouring allowed under US regulation is actually problematic for health.
dupes and disallowing new comments are at odds for discussion unless the goal is to have someone re-review the topic then write a new article for submission.
If there is something new and interesting to say about the topic, someone should absolutely publish it and submit it to HN, and we would welcome it and expect it to inspire a great discussion.
This is one of the least controversial or difficult moderation principles on HN.
Dumb question but I’ve always wondered if we could make a giant reusable “hand warmer” type chemistry around the battery and use that to get it going in cold environments.
Looking into it more. Maybe something like supersaturated solution of sodium acetate (plus water) in a sealed pouch with a metal disc. Bending the disc triggers crystallization, releasing stored heat (around 130–140°F for 20–60 minutes). Boil them to reset.
So you could boil and reset them during charging and click them off if needed in cold weather.
One way I've seen of doing this is to include a PTC heater. It's a heating element that you feed DC. It has a positive coefficient of resistivity vs. temperature, so it'll asymptotically approach a temperature defined by the structure of the material. No PID controller required, it's just a sheet of material you include in the battery structure.
Granted, you have a minor bootstrapping issue wherein you need the battery to be warm before you use battery power, but at very low % of the battery's power capacity I suspect it's less of an issue.
I don't think it's a dumb question at all. Storing thermal energy separately from electrical energy would make plenty of sense if we could store the thermal energy better (cheaper, lighter) than the electrical energy.
A quick search suggests that sodium acetate used like this stores 230kj/kg (i.e. 64 Wh/kg in the units used for batteries) [1] which is significantly worse than the sodium ion batteries being discussed. Same order of magnitude though, so maybe there's a better material that would make it work.
I thought the pill form was actually pretty high tech to get the peptides through the digestive system. I don’t see how a compounding pharmacy would be able to produce it. Anyone know?
But beyond that, the most compelling content was probably the best all time videos which I’ve exhausted. Plus half the videos now seem to cut off before they answer whatever question they posed. Very frustrating.
No website of any kind should require IDV unless banking. It is a tool that will be used for censorship, removal of access to information, destruction of freedom of speech, erosion of privacy, and attacks on political opponents.
We need anonymity, ephemerality, and public square free speech.
Governments should instead regulate what these companies can do. How they advertise. Engagement algorithms. Stop internal efforts to target kids. Etc.
Disallow advertising to kids. Turn off ads on children's accounts if the user is predicted or self reports as a kid. Turn off the algorithm for kids.
This is the obvious solution, but implementing it would be a herculean effort. Not because it's technically difficult, of course.
Consider the incentives of all involved powerful groups.
You have social media giants who want to addict and advertise to users. The hate your solution, obviously. With the ID checks they lose out on their younger users, but they also get cover for even more aggressive behavior as nobody can credibly yell "think of the children!" at them.
Then you have government officials who are nervous about their lack of effective control over modern media. Your solution offers them nothing and loses them points with those powerful business leaders. It opens them up to attack from the right for being "too hard on business and stifling innovation." The ID checks, on the other hand, give them a mechanism and lever to crack down on any sentiment in the public that runs counter to their or their friends' interests. It even polls pretty well with an increasingly large number of paranoid and distrusting voters.
There's no contest at all between the routes before us. Only a huge political upheaval could divert the world from this path. The indicator to look for in a representative is a willingness to champion policy that hurts entrenched political and economic power while providing straightforward utility to average citizens.
I am an Australian Instagram user in my 30s. When setting up my profile a few years ago I set the birthday to some fake date near my real age. At no point, including when the ban went live, was I ever asked to prove my age through any means. Nobody I know has either (noting that everyone I've asked is an adult).
> reads "talking to bots and other low value activities"
> translates it to "stop talking online"
The mental gymnastics to arrive at 2 is insane. Either you're being disingenuous or you actually believe everyone online is a bot in which case telling people to stop talking online is good.
I expect more kids will switch to playing more games on their phones with their friends. Whoever thinks the kids will instead put down their phones and starting go out more often has lost touch with reality.
You don't understand, we're going back to the good old days.
Kids will go back to rolling hoops and playing jacks in the street, they'll write letters to each other in cursive, because print is addictive, and we can finally go back to the time where if a kid is even a little bit different from those around them, they're robbed of having any type of social support system that doesn't ostracize them.
It's not even a noble goal because it's entirely populist rather than evidence and logic based. It's giving: "Yay we solved bad parenting by pretending that bad stuff is not allowed on the internet, but only for those who are under 15". It's sad that anyone believes that this would have any real positive outcomes for our society.
Social media's entire income model is finding out who you are to advertise more accurately. Facebook knows your age down to the day, and if they ask for ID this is them taking even more data.
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