## Search found 1147 matches

- Mon Aug 22, 2016 1:33 pm UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

You've moved the goalposts. I very clearly said what I meant the first time and I repeated myself word for word. Frankly between your condescending remarks and arbitrary dismissal of my arguments I don't see any more point in addressing your comments. Yes, we can. I literally just gave an example o...

- Sun Aug 21, 2016 5:29 am UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

Like, water isn't a gas even though hydrogen and oxygen are gases. Are you seriously arguing that basic physics is unable to explain that fact? Emergent properties are a 2000 year old philosophical problem and yes, I'm arguing that they exist and reductionism fails. In the example I gave taste is t...

- Sun Aug 21, 2016 2:02 am UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

gmalivuk wrote:That the taste of salt isn't the taste of sodium plus the taste of chloride could easily be inferred from a reductionist argument

The burden of proof is yours. I'll leave you to it.

- Sat Aug 20, 2016 10:41 pm UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

You're making an unjustified leap from the fact that we haven't explained those things mathematically to the conclusion that we can't. I picked examples I'm confident can't explained mathematically. We haven't explained those things from the most basic physical principles, but unless you're some ki...

- Sat Aug 20, 2016 10:27 pm UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

Physics only came into the picture once Cleverbeans made the claim that math "can't describe most the universe", and this statemet is simply false. Oh is that so ? Lets start a short list of things you can't describe mathematically to get your started and just to be pedantic I'm going to ...

- Sat Aug 20, 2016 9:06 pm UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

3) Surely there's some sense in using "universal language" to mean the sort of thing that would render a "universal translator" obsolete, and in using it analogously to how we already use "global language". I agree and I'm willing to concede that in this sense math is ...

- Sat Aug 20, 2016 12:27 am UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

gmalivuk wrote:Who says "universal truth" to mean the first thing?

Truth? Lets not get carried away here I said universal language. I haven't done a poll or anything but I'm pretty sure I'm not the only using that definition.

- Fri Aug 19, 2016 7:51 pm UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

Why do you and Cleverbeans both keep talking about the current state of physics to make claims about the limits of mathematics? I believe this is because of the two distinct meanings of universal being used. I was discussing whether mathematical models are capable of describing everything in the un...

- Thu Aug 18, 2016 9:40 pm UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

But you gotta admit that a language that can sum up everything we know about the way the universe works in a few pages, is pretty powerful. On the contrary. We only have a few pages worth of phenomenon that can be described mathematically, that's strong evidence of it's limitations. Yet, at the fun...

- Thu Aug 18, 2016 3:11 pm UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

The basic laws of physics are governed by very simple mathematical rules. Or at least, we have no reason to assume otherwise. It's also an assumption that this is true too, so we're assuming either way. I highly object to the term "governed". The math doesn't control the universe, it desc...

- Thu Aug 18, 2016 12:49 pm UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

gmalivuk wrote:Ah, so when you said "mathematics is vague", what you actually meant was "physicists use approximations"?

Yes. Vague only as a description of the world but not internally. I agree that on it's own mathematics is very precise.

- Thu Aug 18, 2016 12:42 pm UTC
- Forum: Mathematics
- Topic: 1 is Not Prime
- Replies:
**17** - Views:
**5033**

### Re: 1 is Not Prime

I assumed this was just by definition to make unique factorization possible. I think of 1 as being conveniently not prime rather than inherently not prime.

- Thu Aug 18, 2016 12:38 pm UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

Statements like that mean very specific things when mathematicians say them, and I can't help but think you know very little about math if you think that makes it vague. I realized after I went to bed I didn't explain myself very well. By vague I mean more that when mathematical models are applied ...

- Thu Aug 18, 2016 7:50 am UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

In what way is math "vague"? Imperfect - I agree. Nothing is perfect. But vague? Yes vague, as in only to a certain degree of accuracy. In the way that say, a quadratic can be made to vaguely resemble part of a sine curve or how we study non-linear curves by pretending they're close to li...

- Tue Aug 16, 2016 1:57 pm UTC
- Forum: Mathematics
- Topic: Misunderstanding basic math concepts, help please?
- Replies:
**338** - Views:
**67756**

### Re: Misunderstanding basic math concepts, help please?

I recall having a similar crisis of confidence as I began to understand exactly how limited mathematical models are in practice. I've come to the following conclusions: 1) Mathematical knowledge is the most certain and enduring form of knowledge we have. 2) Mathematics only vaguely resembles reality...

- Sun Aug 07, 2016 12:01 am UTC
- Forum: Computer Science
- Topic: Room temperate fault-tolerant Quantum computing?
- Replies:
**0** - Views:
**6309**

### Room temperate fault-tolerant Quantum computing?

Saw this on reddit and I was curious it's just of theoretical interest or if it's on the road to practical quantum computers. Anyone know more about it?

http://journals.aps.org/prl/abstract/10 ... 117.060504

http://journals.aps.org/prl/abstract/10 ... 117.060504

- Fri Aug 05, 2016 2:37 am UTC
- Forum: Coding
- Topic: Entry level tech career--what should I be learning?
- Replies:
**3** - Views:
**4846**

### Re: Entry level tech career--what should I be learning?

Managerial and executive positions are more about soft skills than technical knowledge. You'll need to be good at working a room, making connections and mediation. Time management and self-discipline are also mandatory. While it shouldn't be a factor the reality is that it really helps if you're goo...

- Fri Aug 05, 2016 2:01 am UTC
- Forum: Serious Business
- Topic: Ethics of AdBlock
- Replies:
**639** - Views:
**119333**

### Re: Ethics of AdBlock

I'm confident enough in my own self-control that I am happy to be served ads that might interest me. Your confidence is misplaced. Ads work that's why it's a trillion dollar industry. Everyone seems to feel they're immune to coercion but that's simply untrue. If you're human you're susceptible. The...

- Thu Jul 14, 2016 3:47 am UTC
- Forum: Science
- Topic: Dropping a Cloud Nine From Orbit
- Replies:
**38** - Views:
**6368**

### Re: Dropping a Cloud Nine From Orbit

Neil_Boekend wrote:Helium is extensively used as a breathing gas in diving so I'd hazard a guess that it's relatively safe (actual expertise and more testing required, of course).

I believe there is a helium shortage so I discounted the possibility.

- Tue Jul 12, 2016 10:09 pm UTC
- Forum: Science
- Topic: Dropping a Cloud Nine From Orbit
- Replies:
**38** - Views:
**6368**

### Re: Dropping a Cloud Nine From Orbit

Rather than trying to heat it up to increase buoyancy what about reducing the oxygen content and increasing the nitrogen content to use it as a lifting gas? Sea level oxygen is about 21% of air but at higher altitudes which we can condition for it's only 12% or so. It's unclear to what would be more...

- Tue Jul 12, 2016 9:47 pm UTC
- Forum: Science
- Topic: How do satellites not crash into each other?
- Replies:
**94** - Views:
**14377**

### Re: How do satellites not crash into each other?

I recall someone asking how NASA would avoid asteroids in the asteroid belt when exploring the further sections of the solar system. The way they do it just not consider it at all. The distances involved are literally astronomical so the probability of a collision is functionally zero so there is no...

- Tue Jul 12, 2016 9:36 pm UTC
- Forum: Serious Business
- Topic: energy currency?
- Replies:
**63** - Views:
**19536**

### Re: energy currency?

Pretty much, yeah. No real need for a commodity based currency at all. More so pegging a currency to a commodity makes it vulnerable to external factors. Someone could discover a way to flood the market with such a commodity or horde it which would lead to volatility in the currency. Ideally a mean...

- Mon Jul 04, 2016 1:54 pm UTC
- Forum: Mathematics
- Topic: Algorithm for Areas Under Normal Curve
- Replies:
**4** - Views:
**2342**

### Re: Algorithm for Areas Under Normal Curve

You can integrate the Taylor series of the normal distribution to the desired degree of accuracy.

- Mon Apr 18, 2016 3:06 pm UTC
- Forum: Mathematics
- Topic: A rectangle with rounded edges is not an oval
- Replies:
**22** - Views:
**17034**

### Re: A rectangle with rounded edges is not an oval

tckthomas wrote:EDIT: mine would be ellipse and not an oval

Don't forget to tell that girl you were mistaken. Humility is important in mathematics because we all make mistakes and if we ignore them instead of correcting when pointed out to us then we'd make no progress.

- Sun Apr 17, 2016 3:59 am UTC
- Forum: General
- Topic: Origami and Mental Illness
- Replies:
**7** - Views:
**4250**

### Origami and Mental Illness

I put together some photos of my origami work and I thought I'd share it here. It includes some information about my mental illness and how I use paper folding to manage it. I hope you enjoy it.

- Thu Feb 25, 2016 6:34 pm UTC
- Forum: Mathematics
- Topic: Is math real?
- Replies:
**105** - Views:
**16702**

### Re: Is math real?

Yet, the entire mathematical framework for the theory was perfected many decades earlier, by pure mathematicians who couldn't care less about practical applications (and certainly didn't have anything remotely resembling a picture of a quantum mechanical universe to guide them) It's interesting tha...

- Thu Feb 25, 2016 12:29 am UTC
- Forum: Mathematics
- Topic: Is math real?
- Replies:
**105** - Views:
**16702**

### Re: Is math real?

Trees Dogs Water Gravity Fire All of these can be observed directly or indirectly with your senses, so math is not real. Also, sorry for the late edit. And interestingly enough, this is a very typical case. Nearly always, when we unravel a new secret of the physical universe, we find that the mathe...

- Wed Feb 24, 2016 12:32 am UTC
- Forum: Mathematics
- Topic: Is math real?
- Replies:
**105** - Views:
**16702**

### Re: Is math real?

Defining "real" is philosophical difficult, and must be established before we can determine if math can be categorized as such. For example a unicorn is not real as a thing that exists in the material world but you can argue it's real as an idea or concept. Personally I'm of the opinion th...

- Tue Nov 24, 2015 1:05 am UTC
- Forum: News & Articles
- Topic: My Friend was Killed in a Terrorist Attack
- Replies:
**9** - Views:
**4789**

### Re: My Friend was Killed in a Terrorist Attack

I believe that the leader of the number one arms dealing nation on Earth doesn't actually mind that terrorists killed you friend. They were the only veto on the security council resolution for Palestine to join the UN in 2011. Israel is a big customer, and strategically important geographically so m...

- Fri Oct 02, 2015 2:47 am UTC
- Forum: Mathematics
- Topic: Composite numbers and polynomials
- Replies:
**9** - Views:
**2565**

### Re: Composite numbers and polynomials

Cauchy wrote:Doesn't P(n) = n cover all the composite numbers?

I assume he means all, and only the composite number.

- Wed Sep 16, 2015 4:18 am UTC
- Forum: Coding
- Topic: Best password improver
- Replies:
**62** - Views:
**10279**

### Re: Best password improver

Replace a few letters with other characters that look similar in a phase you can easily remember. "Roses are red" can become "R05es @re r3d"

- Wed Sep 09, 2015 11:30 pm UTC
- Forum: News & Articles
- Topic: Refugees travelling to Europe
- Replies:
**139** - Views:
**21538**

### Re: Refugees travelling to Europe

The ones continuing onward are the ones we are talking about. And none of them are continuing on to Georgia and Armenia. Are you kidding me? No one is going to Georgia because people are still fleeing Georgia. Remember refugees are fleeing conflict zones, not actively seeking them out. Armenia was ...

- Wed Sep 09, 2015 4:11 pm UTC
- Forum: News & Articles
- Topic: Refugees travelling to Europe
- Replies:
**139** - Views:
**21538**

### Re: Refugees travelling to Europe

The reason the refugees are trying to go to Europe is because the Europeans made Europe a place worth being in. You think Europe is a good place because of a wealth of natural resources? Sub-Saharan Africa has far more resources than Europe. But the refugees aren't fleeing to sub-Saharan Africa bec...

- Mon Sep 07, 2015 12:32 am UTC
- Forum: News & Articles
- Topic: Refugees travelling to Europe
- Replies:
**139** - Views:
**21538**

### Re: Refugees travelling to Europe

As for what to do about the refugees, I'm a bit ruthless in this. Allow women and boys below the age of 16 to enter; all the men capable of fighting have to go back to fight or die. I'm not sure unarmed, untrained civilians are going to make much of a match for carpet bombing. Certainly you can fin...

- Sun Aug 30, 2015 5:59 am UTC
- Forum: Serious Business
- Topic: Won't advanced AI inherit humanity's social flaws?
- Replies:
**131** - Views:
**28547**

### Re: Won't advanced AI inherit humanity's social flaws?

The Great Hippo wrote:Presuming by "psychopath" you mean "person without empathy", I'd expect they'd have a harder time with manipulation.

Maybe he just meant psychopath?

- Fri Aug 28, 2015 7:29 pm UTC
- Forum: News & Articles
- Topic: Virginia shooting
- Replies:
**64** - Views:
**15112**

### Re: Virginia shooting

Yeah there are rational reasons to commit suicide. Like, you are suffering from an incurable and debilitating disease. But do you want to make the argument that in this case, a murder-suicide, that the murderer was rational? Firstly, humans, even healthy normal humans are irrational. It's not the s...

- Fri Aug 28, 2015 2:50 am UTC
- Forum: News & Articles
- Topic: Virginia shooting
- Replies:
**64** - Views:
**15112**

### Re: Virginia shooting

The specific case was a murder-suicide. You are honestly going to claim that suicide is something performed by rational people? Yes of course, especially when facing imminent capture. Thich Quang Duc is another excellent example. There is absolutely no good reason to assume this is related to menta...

- Fri Aug 28, 2015 1:56 am UTC
- Forum: News & Articles
- Topic: Virginia shooting
- Replies:
**64** - Views:
**15112**

### Re: Virginia shooting

Unless you're arguing that all rapists are mentally ill, I wouldn't call 250 000 cases negligible. I'd consider "rapists are mentally ill" almost a tautology, tbh. Well you'd be wrong. Criminal behavior including rape is not a diagnostic criteria for any mental illness. Please don't unfai...

- Tue Aug 25, 2015 3:42 am UTC
- Forum: News & Articles
- Topic: #BlackMonday 2015: China down 8%+, Dow Jones opens at 15500
- Replies:
**42** - Views:
**7534**

### Re: #BlackMonday 2015: China down 8%+, Dow Jones opens at 15

Thesh wrote:Most people are better off just investing in index funds anyway and leaving their money there.

Or even better dollar cost averaging in an index fund. It's stupid easy and takes all the guesswork out.

- Wed Aug 12, 2015 3:51 am UTC
- Forum: Mathematics
- Topic: Prove by induction 3^n < (n+2)!
- Replies:
**12** - Views:
**3006**

### Re: Prove by induction 3^n < (n+2)!

Instead of just doing n=0, do n=1 explicitly and we see that 3 < 6. This means in addition to the inductive hypothesis we can can assume that n > 1 which implies n+2 > 3, which mean 3^(n+1) = 3 * 3^n < 3*(n+1)! < (n+2)(n+1)! = (n+2)! which was to be shown.