Not necessarily. Greenland ice core records show that in the past the planet has seen temperature shifts of up to 7 C in as little as 30 years. 7 C is huge. It's like transporting Moscow to Rome. Of course, we have no idea what caused such rapid changes in the past. It wasn't CO2 levels, or particulates.

I would. If one or more isolated populations managed to survive more than a couple of generations after the event, I think it's highly likely that they'd continue to survive indefinitely. The worst of the changes would be past, and they'd clearly have learned how to survive in the new environment, else they'd have died sooner.

Human intelligence makes us highly adaptable, as evidenced by the extraordinary diversity of environments in which we live, and lived even before the advent of modern technology. Humans who lack the necessary knowledge of how to survive in a particular environment are at severe risk of death any place on the planet, but if they manage to survive for even a year or two, odds are that they'll have learned enough to be able to extend that time almost indefinitely.

The article is also based on some terrible reasoning, like:

That means there will be no asteroids left in the Solar System, because they all will have struck Earth, in another few hundred million years. Think someone’s overestimated something there? Yeah, me too. Let’s take a look with the flaws in our fear-based reasoning.

Yeah, in a universe where our solar system is some sort of perfect steady state. Which, of course, it is not. Asteroids collide or - more commonly, come close to other bodies and gravitationally interact - and throw each other into different orbits. When that happens, non-Earth-crossing asteroids can become Earth-crossing ones. For example, one of the candidates for the K-Pg extinction event is a Batisma-family asteroid. This family came from an asteroid breakup 80 million years ago.

A person well versed in the field would be aware of the fact that asteroids are not in some sort of unchanging steady state. Which is why they're the ones paid to do the research on the subject.

And more to the point, we really don't have a good handle on what's out there. We have trouble making out dwarf planets in the outer solar system. We really have no bloody clue what could be on its way into the inner solar system, apart from studying how often major events happen.

And on that note, another flaw in his logic, given that until recently, the vast majority of Tunguska-style events would never even have been detected, having occurred over the oceans, remote deserts, the poles, etc. So by all means it's perfectly fair to say that the fact that an asteroid hitting earth is more likely to hit a remote uninhabited area is perfectly fair. But saying that while mentioning the rarity of inhabited areas having been hit in the past is double-counting. The historical record is evidence of how often they hit populated areas, not how often they hit Earth.

Lastly, his claim that only one person has ever been "hit by an asteroid" is ridiculous. 1500 people were injured by the Chelyabinsk one in 2013 badly enough to seek medical attention. Yes, they weren't "hit by rocks", but that's not what large asteroid impacts do; they mostly or completely vaporize by exploding in the atmosphere and/or on impact. And there's lots of reports throughout history of people getting struck by asteroids; just because they weren't documented by modern medical science doesn't mean it never happened. Seriously, what's the bloody odds that the only person to ever in historical times be hit by an asteroid would be in the 1950s in the middle of a first-world nation? Now what's the odds that someone being hit in the 1950s in the middle of a first-world nation would be well documented, publicized, and believed?

Just a lot of really bad arguments.

Learn Ruby. It's what Perl 6 should have been — the good stuff from Perl, but cleaned up.

Then you can either go the devops/sysadmin route — both Puppet and Chef are written in Ruby — or you can go the Rails or Sinatra route and head towards web services development.

Which is doubly annoying/funny because Google, at least, doesn't give people brain teasers.

It is not difficult to be "clever" at all. Look at various "bean" frameworks. Use their object marshaling features. Throw in some of their aspect-oriented programming features.

Now you usually have a bloated, incomprehensible mess. Sure you can easily read any couple of lines of code in isolation. But the system as a whole is a huge pile of gratuitous redundant layers of abstraction and confusing action-at-a-distance creepiness.

Can you imagine the dystopian dictatorship where trekkies come to power? All of the halls of power full of people walking around in spandex and fake ears and brow ridges, the fed directed to work toward the absolution of currency, the military directed to accelerate development of phasers and for all recruits to undergo "Kobayashi Maru" training.... NASA would finally get their proposed $18,5 billion dollar annual budget passed - except that the bill would have the word "annual" crossed out and the word "monthly" written in its place. National anti-bullying legislation would be passed, probably with a name like Spock's Law. And of course they'd insist on referring to the UN as the United Federation of Planets.

You missed the point, I think.

The bionic foot in the article doesn't receive signals directly from the brain. It receives signals as they arrive at existing muscles. So we're talking about a brain that has already been wired naturally to control normally-grown muscles, and hijacking that message to also actuate motors. To use this process for additional limbs, you'd have to have a person who had grown those limbs to begin with.

Well, with electronic toll-paying that could work, but it would still shift the burden from low MPG to high MPG cars.

The great thing about a gas tax is that it's a simple way to kill two birds with one stone: encouraging higher mileage and paying for infrastructure. The problem is that not everyone agrees that both birds are important. Two-birders think that high mileage vehicles should be discouraged because of externalized costs -- pollution mainly, but also space required in parking lots, greater risk to other road users etc. One-birders don't care about externalities but understand that the roads and bridges need to be repaired. Zero-birders are just idiots.

I'm a two-birder myself, so raising the gas tax is a no-brainer. I'd also issue everyone a flat rebate per driver, because in fact I'm a three-birder: I'm concerned about the effect of a regressive tax on the working poor who have no options but to drive to their jobs.

But I'm also a realist. There are a lot of one-birders out there and the roads need repair. It's also politically easier in one-birder territory to sell something as a fee rather than as a tax, even though from my perspective that's an irrelevant difference if you're raising the same revenue either way.

Well, they're already opting to have damaged natural joints like hips and knees replaced. That's a case of upgrading from natural to artificial to gain function. As the performance of artificial limbs increase, it might become an increasingly commonplace treatment for older people, just like knee or hip replacement.

If we project that trend forward for twenty or thirty years I wouldn't be surprised at all to see artificial legs that outperform natural legs for the purposes of walking or even running. But I don't think people with normal abilities will be trading in their limbs just to be able walk a little longer, run a little faster, or carry more weight. That won't happen until the replacement is subjectively indistinguishable from the real thing; until you can feel the grass under your toes.

I'm comfortable predicting locomotion parity in the next fifty years, but I wouldn't care to speculate on when we'll see sensory parity.

I have no problem with going after people who steal trade secrets, anything more than I have a problem with going after people who steal nuclear secrets. The only thing is that the FBI has a long history of racist paranoia about Chinese scientists, from Quan Xuesen in the early 50s to Wen Ho Lee in the 90s.

Rhwew may well of a legitimate case against these guys and if they do I hope they nail the bastards. But I'm not jumping to any conclusions based on FBI say-so.

You're the one worried about passwords that can be broken in 25 years; that's a non-issue. The issue is security that works well enough for long enough and is workable for the users. Impressive sounding, inflated requirements means something else has to give: price, performance, or usability.

Well, once you've cracked the VPN traffic the password is almost a secondary concern, isn't it?

This is the wrong way to think about security, e.g. for a hypothetical world where users adhere to anything you demand of them no matter how intrusive or onerous that is. In reality if you decide that usability and convenience aren't factors in your planning then that's actually an oversight which will come back to bite you on the ass someday. The only thing you can say for that approach of wishing usability away is that when disaster comes you'll be able to point the finger of blame at the users -- even though their non-adherence is a predictable result of your poor understanding of system requirements.