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Please don't make comments like this. You haven't made any points about the post itself; you're just trying for a laugh. HN is not meant for that sort of thing; it's a slippery slope that leads to less intellectual discussion on the site.

When I saw the title, I thought they'd figured out a way to make use of something other than helium, but I guess I was wrong. I was thinking maybe they built self-resizing vacuum chambers in order to reduce the weight/volume ratio. Like, there would be two membranes, and between them, supports that can extend or shorten to change the volume of the vacuum-space, and affect the overall density that way.

Does anyone know if this has been done, or if it's at all feasible?

I find it strange how the writers assume only Earth-like life would evolve on another planet. They speak in terms of bacteria, plants, animals... It doesn't make any sense to me. Out of the 3.5 billion years that the planet has sustained life, animals (first sponges, then cnidaria, etc.) have only been around for 630 million. Evolution didn't happen according to some goal; organisms evolved to suit their habitats.

So saying that plants/animals wouldn't exist on a planet significantly hotter than ours is really strange to say - they'd have no -reason- to. Because the evolutionary tree on that planet would be completely different from ours, the organisms' forms and internal structures will be very different in many ways. The same things won't have happened in their evolutionary history.

And of course, life would be adapted to the planet itself. You might say, "Enzymes don't function at those temperatures." Well, the life on hotter planets will have evolved to use different enzymes that -do- work at those temperatures.

Google Handwrite 14 years ago

Because touch-screen typing, and seeing the phone's wrong answers about what you meant EVERY time, isn't incredibly frustrating. ;)

Destined To Fail 14 years ago

I'm pretty sure it's a useless question. You can use debit cards as credit cards and vice versa.

Because it is defending the status quo. Everything that was said is true, but nothing was said that didn't defend the old perspective. It happens a lot - you defend an opinion you had, and when you come up with some good evidence in your favor, you pretty much stop there. But if you had tried to see it from the other side, you may not have been so defensive.

Cultural/memetic inertia is really hard to overcome, mostly because of this I think.

I think the media is portraying it this way because there are a lot of people who get into fields and do work they way they're "supposed to", i.e., told to by peers and bosses, rather than, as this kid did, actually going through and figuring things out. Every medical breakthrough is a puzzle that's been solved, but some people aren't as interested in solving the puzzle as listening to what their boss says. Which makes sense, nobody wants to get fired, it's just suboptimal for problem solving.

Wow, has HN been taken over by business types already?

Don't you think Mayer has enough capital, connections, reputation, experience, etc. that if she started a company to do what she wanted, how she wanted, it would be completely different from your average college-grad startup?

I mean, come on now. There's no comparing the two.

I still think you can have professional disagreements and make a compromise without being uncourteous and unprofessional. Of course, it's harder when the other party isn't being professional, but it's still possible.

You can be interesting without forcing your perspective on others. You don't have to tell other people they're wrong in order to tell them how you feel, though it often happens with nerds like us.

This experience is part of the process that will get him off his "fucking" high horse.

Why blame a person's ignorance on the person, rather than their upbringing? Ignorance has to be resolved somehow.

I think you are mistaken - red objects bounce red light back. They absorb the other colors.

I think you were just trying to be a smartass with this reversed light thing, so you were downvoted. :\

Anyways, just try to have a more serious intellectual discussion. Also, don't be a jerk. Saying "NOT!" after something is pretty immature and aggressive.

As far as spelling/grammar errors, here's one: "bounceds of" instead of "bounces off". Also, you used "there" instead of "they're".

Malthusianisms 14 years ago

Eh, I think some of these are circumstantial. The dating one probably applies to a very specific type of person. This is the one that does it for me:

Why are even some affluent parts of the world running out of fresh water? Because if they weren’t, they’d keep watering their lawns until they were.

It's all about greed/constraints/pressures/incentives/desires. People want to use water, but people don't have an incentive to keep water use down. Instead, they put pressure on engineers to bring availability up. And when availability, or supply, goes up, demand comes back in to seal the gap.

Blue grass eh? What the hell? I have never heard of such a thing, and I suspect the people who downvoted you hadn't as well.

Also: >Why are Europeans White? Because none of them are Wong :-) and there not actualy white.

This is not the kind of serious scientific discussion expected here - you're supposed to be making some kind of point. You're not explaining anything by saying "they're not actually white".

Also, sadly, I think people downvoted you because of your grammar - you don't seem to be a native speaker, you're making some odd/un-intellectual mistakes.

This happens a lot though. For example, the alleles that keep domestic cats and dogs friendly are from juvenilizing mutations. These mutations also make the ears floppy. It's called "neoteny". The same thing happened when the Russians domesticated silver foxes[1][2].

Humans are subject to a lot of these effects. Our head shape is very similar to the head shape of a baby chimp or gorilla, which obviously changes later in the ape's life. We have much smaller teeth and jaws than other apes our size.

Anyways, the point is that many alleles can be linked to a specific gene, so the fact that blue eyes and blond hair become more prevalent when less skin tone is selected for makes sense.

That said, I don't agree with some of the points made. He's kind of jumping to conclusions. You really can't rely on art to guide your research on skin tone. I draw art where humans are #FFFFFF because that's the color of the paper. Nobody in their right mind would trust something as symbolic as art.

I think the theory as a whole makes sense, though. Grains can grow, need moar vitamin D, lighter skin, other alleles come along for the ride. Now that's a pretty valid theory IMO.

[1] http://en.wikipedia.org/wiki/Neoteny#Domestication [2] http://www.youtube.com/watch?v=d1G2yZMUNUQ

The burgers are addictive, man. The craving, the feeling of being overcome by the desire to consume when you get one, the shitty feeling you get afterwards and yet still continue to eat it - that's addiction, bro.

And like the other guy said - it's backed up by science too. The insane amounts of fat, salt, and sugar spike the reward processors in the brain WAY past what they're built for. They are hacking you.

You can tell how much the writer doesn't believe a single Goddamn word he says. Vagary, exaggerated emotion, all for what? Some device I can't even find one cool thing about. This was written for a boss, not for you and me.

Right, because every startup is Worth It (TM l'Oreal). :P

Of course, you're also right - I don't think this guy is a very effective VC at this point. Some of his points seemed completely disconnected. But a person hand-waving or getting nervous on an important topic is a great flag to look for, don't you think?