Follow Slashdot stories on Twitter


Forgot your password?

Comment Re:Um, why? (Score 1) 288

OK, so nerd rage doesn't do it, huh?
How about "Um, survival?"

If humanity is going to survive for any longer period of time, we have to make a self sustaining colony somewhere other than this mudball. Outside of this solar system would be better, but I can accept another planet in this one as a good start. Even a (semi-)independent moonbase would be a decent investment as a training/prototype/testing facility.

I've heard people argue that "we have plenty of time, we should fix earth first", to that I say:
Off the top of my head I can think of 3 different potential civilization-killer level events that we're overdue for, in the sense that the last one was longer ago than the average time between events - Big asteroid/comet (think dinosaur killer), Supervolcano(es) (enough dust in the atmosphere for a year or three with no place on earth where the temperature goes above freezing) and Large Scale (natural) Climate fluctuations (the last few tens of thousands of years has had some of the most stable and hospitable weather for as long as we can determine, according to some sources; if large scale agriculture fails, how far behind is the rest of civilization? How large a percentage of a society needs to starve before it collapses?).

It is not a matter of "if we go" (maybe not Mars, but somewhere), but "if we survive". If you accept that we should try to survive, it becomes "when we go".

Comment Re:Race? (Score 1) 286

As a biologist, I can inform you that the only reason that "race" doesn't exist is because it is a misnomer. The correct term is "subspecies", but that sounds really politically incorrect. From Wikipedia:

Members of one subspecies differ morphologically or by different coding sequences of a peptide from members of other subspecies of the species. Subspecies are defined in relation to species. If the two groups do not interbreed because of something intrinsic to their genetic make-up (perhaps green frogs do not find red frogs sexually attractive, or they breed at different times of year) then they are different species. If, on the other hand, the two groups would interbreed freely provided only that some external barrier were removed (perhaps there is a waterfall too high for frogs to scale, or the populations are far distant from one another) then they are subspecies. Other factors include differences in mating behavior or time and ecological preferences such as soil content. Note that the distinction between a species and a subspecies depends only on the likelihood that in the absence of external barriers the two populations would merge back into a single, genetically unified population. It has nothing to do with 'how different' the two groups appear to be to the human observer.

Comment Re:Easy (Score 1) 973

As humans can't survive sub-zero temperatures, and as increasing the winter temperature is impossible, it's obvious that humans will never be able to live year-round outside of the tropical and sub-tropical zones.

There, fixed that for you. Now, get off my Swedish lawn!

Comment Re:How secure (Score 1) 491

Shiny stuff is always silly. Unless you have some very peculiar needs, gold is fairly useless. It looks pretty and doesn't really go away, so there is a limited use for it in jewellery, but the only way you can fill your stomach with it is by trading (and the same for a roof over your head, keeping warm etc), and let's be honest - are there really that many jewellers / people how need jewellery around?

Comment Re:Missing the point... (Score 1) 1115

How many walk away because their product will not make a profit... based on how many in the past have failed, due to piracy? You have to have one before the other will happen. So, the question is: have any actually failed? If not, why would they walk away?

NO - the FEAR of piracy is enough; as long as the fear is great enough, you don't need a valid, logical reason to walk away.

Comment Re: samzenpus: (Score 1) 150

What about trains?! Nobody even mentions the possibility of being the bug on the windscreen of the world? I'm not talking about jumping - you might time it wrong, or bounce/roll so that you survive, I'm talking about STANDING there. As fast and sure as a bullet and more easily available outside of the USA. :P

Comment Re:The question is still absurd... (Score 1) 1042

There IS a benefit to using corn (for now). If we encourage ethanol use, then an infrastructure gets built up which can handle ethanol. When the cellulosic ethanol starts to become more widely available, that can replace the corn-based, and the infrastructure will be in place.

My personal conviction is that using any foodstuff, or anything that can be used as a reasonably efficient animal feed, for ethanol production for fuel (as opposed to e.g. beer) is a very bad idea, in the long run. In the short term, however, I think you're right: we need to get an infrastructure going. One additional concern about 100% ethanol as a fuel, is the energy density. IANAI, but from what I understand, ethanol has a much lower energy density than e.g. BioGas. I don't see much use in creating a dead-end half-assed infrastructure for mixed petrol-ethanol fuels, unless the goal is to transition into 100% ethanol. Also, it seems like in most countries here in Europe, the "green" fuel of choice is BioGas, not E85/E70. One exception is here in Sweden. This means that if you want to import a "green" car, you first need to check that it is compatible with the "green" fuel that is available in your country, and moving from one country to another might mean you need to consider rebuilding your car (a friend of mine is in this situation). We need to select a type of infrastructure that we want to end up with, and choose a path that gets us there.

Comment Re:Oh, FFS! (Score 1) 107

The problem is, if you have to turn it ON, most people WON'T (who looks at the settings page that often, anyway?) - and then "THEY" (Yahoo, FaceBook, Google etc) won't get as many users as they'd like. It's all about volume - only a small percentage pays off (click on ads, the more data/people the better statistics), so you have to increase the flow-through.

Slashdot Top Deals

In the future, you're going to get computers as prizes in breakfast cereals. You'll throw them out because your house will be littered with them.