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I can give you a proof for (1). Use manhattan distance. Take an arbitrary point P. Sand can not get arbitrarily far from P.[0] Thus there is a highest distance n from P sand can reach. Whenever sand collapses, at least one grain gets further from P. Thus there are no collapses at distance n. There are a finite number of points at distance n, so there are a finite number of collapses at n-1. But that means a finite number of grains enter n-1, so finite number of collapses at n-2. And so on.

[0] Consider the path that the sand would travel to get super far out. The path cannot contain any adjacent empty cells (proved in the article). Thus it would take infinite sand to get infinitely far out.

Weightlessness could give 3d with evaporation.

You can lose your job if you post too wrong views too much.

EDIT: I don't understand the downvotes. It is both relevant (it refutes that you can "Post whatever you like to Reddit, or any other discussion platform." without punishment), and correct.

That's a very high bar to set :)

No it hasn't been validated for that use case for that large a system. Some examples where it has been used: PGP uses web of trust to validate keys. Freenet boards used web of trust to succesfully stave off spam attack. They are a lot smaller than reddit of course.

I think one problem is that we have become disconnected from the food production. If a fruit looks different from what we are used to, we don't know if that means it will taste bad, or even dangerous to eat.

I think stronger brands could be a solution, because then we can outsource our decision making to someone knowledgeable, and have someone to blame if the product was bad.

Web of trust-based spam filtering takes some effort to use, but is a workable solution.

Serving malicious scripts is very bad, and may not actually be accepted. I know I would hesitate to use baidu analytics after this. But people might come around if they say something about SSL and wont happen again.

If the encryption is then broken and it is done again, then a) it will prove that China did it. Because you can see who signed the certificate. b) it will prove that technical countermeasures are not enough, since the problem is deeper than that.

Not breaking encryption itself. Breaking encryption to serve malicious scripts.

That would be the death of Baidu among the Chinese diaspora.

>The issue was that Java was making an unsafe optimization (I never bothered to figure out if it is the compiler or the JVM making the mistake, I was satisfied once I had a work-around).

He says it was the JVM or the compiler's fault. He doesn't blame the code.

While simulating a human brains should be sufficient to pass the Turing test, that doesn't mean it is necessary.

You're implicitly assuming that production is "hand-bound". It could also be bounded by natural resources.

For example even if the number of mouths to feed increases, the number of farmers cannot increase beyond what there is farmland for. So the hands will be competing for who gets to plough the fields, in exchange for a meal. Too many hands along with too little land, and the losers starve.

If you increase bcrypt's workfactor then legitimate requests take longer.

Wow this must be a major blow to Baidu. This time their scripts was hijacked to DDoS, not that bad.

Since we all know that the Chinese government would never do a thing like this, it must mean that there is a very powerful hacker group behind this. And they are probably DDoSing for profit. Who knows what they may do for profit next? Spy on users? Steal passwords? Credit cards? Impersonating users?

Until Baidu implements a secure crypto solution that can prevent this malevolent hacker gang from sending corrupted scripts, it would be very irresponsible to use baidu analytics!

There are a number of shady bitcoin denominated stock exchanges, that are close to your vision of "click-to-start"

>point to a case where genetic information passed laterally between species

http://en.wikipedia.org/wiki/Horizontal_gene_transfer

Want to bet? I'll bet that in 20 years we will have programs that can diagnose a patient and explain how it came to its conclusions.

What does true but unprovable mean? What happens if you take such a proposition, negate it and add as an axiom?

If it didn't work, how would you know?

Is there a library with "optimal" implementations of functions such as these?

> Language changes.

Language has appearently changed within your circle of friends. Now you are trying to impose your language on the rest of the world by decree. I think that is disrespectful.

But the meaning of retard is a bit of a side-track. Because as you say yourself

>They're just as insulted if you call them stupid or dumb.

What you are trying to achieve is not just to change language in superficial way by just banning a word. That in itself would not be so bad. You are trying to change language on a deeper level so that a particular thought is impossible to express. You don't want there to be insults based on level of intelligence. You don't want there to be insults applicable to poorly thought out ideas. That is the geniuenly terrible idea.

How are we to prevent retarded people from reaching positions of power where their retardation would harm others? Not talking about who is retarded and who isn't could cripple organizational decision making, causing entire organizations to behave in a retarded way.

Now I understand and respect your concern for the feelings of the retards, and we should of course try to hurt their feelings as little as possible. But discussing who can and cannot be trusted, and here level of intelligence is an important factor, is an instinctive human social behaviour that is at the core of a functioning society.

tl;dr The ideas you are advocating could destroy society... retard

Odds are the black market guys find out. I don't know how the market works, but I'd be pretty pissed if I had bought a hole just for it to be patched soon after.

The more fund managers you have, the more efficient capital allocation you'll have. The fact that mutual fund managers do not beat the market means that we have too many fund managers chasing diminishing returns. The increased efficiency in the markets is too small for their wages.

As the fraction of active fund managers to passive fund managers decreases, this fact will change. More and more passive investors following in the footsteps of less and less active investors. This means the tracking error will increase. At some point the cost of the tracking error will be about the same as the cost of active management, and that is when we have the right amount of active management.

I think at least

Oh, I remember that. I think I did it by moving the Pokemon to the PC.

How much of municipal water needs to be fresh water? Like if you showered with salt water, bathed in salt water, flushed your toilet with salt water etc. Then you wouldn't need to desalinate so much. So maybe, tap salt water could be viable for apartments. Then you'd have to have some domestic desalinator for those few liter's per day you actually drink. Well or buy bottled water.

Now that I think of it: Maybe you could make the hot water salt, and the cold water fresh. You aren't supposed to drink hot water anyway since it contains more dissolved nasties. And you wouldn't water your lawn with hot water because that would be like super wasteful. Although I can see how hot salt water could be somewhat corrosive so maybe you'd need to switch up the plumbing at a huge cost.

So it cuts power before the iPhone can store that a failed attempt occurred. It's such a simple, stupid, wonderful idea. I love it. Kudos to whoever came up with it.

Just want to clarify a little. Since x^2+y^2 = 1, the projection of the torus onto the xy-plane is a circle. The same is true for the zw-plane.

A position on the torus can be specified by specifying the position in the xy-plane, and the position in the zw-plane. Since the projections are both circles, those two positions can be represented by one angle each.

And this is exactly what you see on your screen. The right-left axis is the xy-angle, and the top-bottom axis is the zw-angle. The edges of your screen correspond to an angle of 180/-180 degrees.

If you don't even know the question (can I afford Ivy League?) internet is little help.

And has it been evaluated in this regard?