All of clockbackward's Comments + Replies

Unfortunately, in practice, being as knowledgable about the details of a particular scenario as an expert does not imply that you will process the facts as correctly as the expert. For instance, an expert and I may both know all of the facts of a murder case, but (if expertise means anything) they are still more likely to make correct judgements about what actually happened due to their prior experience. If I actually had their prior experience, it's true that their authority would mean a lot less, but in that case I would be closer to an expert myself.

To... (read more)

A point about using diagrams to make arguments: If you are attempting to convince a person that something is true, rather than just launching into your evidence and favorite arguments it is often most efficient to begin by asking a series of questions to determine precisely how the person disagrees with you. The questioning allows you to hone in on the most important sticking points that prevent the other party from coming to your conclusion. These points can then be attacked individually, preventing you from wasting time making arguments that the other pa... (read more)

"In my experience, the most staunchly held views are based on ignorance or accepted dogma, not carefully considered accumulations of facts. The more you expose the intricacies and realities of the situation, the less clear-cut things become."

Mary Roach - from her book Spook

A side note: The only reason that prime numbers are defined in such a way as to exclude 1 and negative numbers is because mathematicians found this way of defining them a bit more useful than the alternative possibilities. Mathematicians generally desire for important theorems to be stated in a manner that is as simple as possible, and the theorems about primes are generally simpler if we exclude 1. There is a more detailed analysis of this question here:

http://www.askamathematician.com/?p=1269

Anyone who claims to be rational in all area of their lives is speaking with irrational self confidence. The human brain was not designed to make optimal predictions from data, or to carry out flawless deductions, or to properly update priors when new information becomes available. The human brain evolved because it helped our ancestors spread their genes in the world that existed millions of years ago, and when we encounter situations that are too different from those that we were built to survive in, our brains sometimes fail us. There are simple optical... (read more)

4pjeby
I would reverse the ordering you have there: overcoming an emotional attachment is actually the easiest thing to do, finding the irrational belief is the hardest. Actually, finding any implicit belief/assumption is hard, whether it's rational or not. We see the picture framed by our beliefs, but not (usually) the frame itself. Admitting and eliminating one's emotional beliefs can be done in a systematic,near-rote way, simply by asking a few questions (see e.g. Lefkoe or Katie). Identifying one's emotional beliefs, on the other hand, requires something to compare them to, and you can never be quite certain where to start. Brains don't have a "view source code" button, so one is forced to reverse-engineer the assumptions.

Some further suggestions for handling hard questions, gleaned from work done in mathematics:

  1. Hard questions can often be decomposed into a number of smaller not quite as hard (or perhaps even easy) questions whose answers can be strung together to answer the original question. So often a good first step is trying to decompose the original question in various ways.

  2. Try and find a connection between the hard question and ones that people already know how to answer. Then, see if you can figure out what it would take to bridge the gap between the hard ques

... (read more)

I believe that the analysis of this problem can be made more mathematically rigorous than is done in this post. Not only will a formal analysis help us avoid problem's in our reasoning, but it will clearly illustrate what assumptions have been made (so we can question their legitimacy).

Let's assume (as is done implicitly in the post) that you know with 100% certainty that the only two possible payouts are $1 million and $0. Then:

expected earnings = p($1 million payout) $1 million + p($0 payout) $0 - (ticket price)

= p($1 million payout) * $1 million - (t... (read more)

0RobinZ
This is a valid point, and one I missed in my writeup. (Toby_Ord said something similar, but that was in response to a specific question.) It is probably a useful skill to recognize asymmetries in the possible direction of error, such as that which you pointed out. I can see two ways to handle this: a. Additional terms in the derivation, such as P(decimal-point error) and P(sign error), with the e term restricted to the unanticipated-error case. b. Modification of e.

I would like to add another reason why we might perceive high status individuals as being less intelligent (or talented) than they originally seemed. The effect under consideration is reversion to the mean. Often, a person gains high status (or, at least meaningfully begins the climb to having high status) as a result of one exceptional act or creation or work. If our average skill level is X, we may often produce works that require skill close to X, but occasionally produce works that require much greater or much less skill than X (due to natural variabil... (read more)

1wedrifid
To save a wikipedia redirect, google "Regression to the Mean". Or search the existing comments on this post.

Perhaps it is true that our modest technology for altering brain states (simple wireheading, recreational drugs, magnetic stimulation, etc.) leads only to stimulation of the "wanting" centers of the brain and to simple (though at times intense) pleasurable sensations. On the other hand though, it seems almost inevitable that as the secrets of the brain are progressively unlocked, and as our ability to manipulate the brain grows, it will be possible to generate all sorts of brain states, including those "higher" ones associated with lov... (read more)

Sure, many people treat technology like magic, but as it becomes an ever increasing part our our lives, it is hard to deny that the supply of jobs in science and engineering will increase, and subsequently that the number of scientists and engineers will grow to meet this demand. What is more, even if most people are not curious about the technology they grow up with, that does not preclude the possibility that increased technology correlates with increased interest in science. All it would take is one in 10 or even 1 in 20 people to be influenced by the technology they use.

Being mean to someone who is not themselves being mean or manipulative is often not just counterproductive and self destructive (due to the reasons you mentioned), but also the result of personal weakness and lack of control. Meanness usually results from one of the following situations:

  1. We feel angry and speak impulsively, entranced by our emotion.
  2. We speak carelessly and don't realize the potential emotional consequences of what we are saying.
  3. We are consciously and knowingly trying to hurt another person.

In case 1, our anger reflects a personal weak... (read more)

Unfortunately, the arguments that are most convincing to human minds are often not the most logical or the best supported by evidence. To be as convincing as possible, one must appeal to the emotional, as well as the rational aspects of the brain. Arguments are unlikely to succeed when your audience is put on the defensive or made to feel as though their world view is under attack, since this will trigger emotional states. Anger, annoyance and resentment affect the proper functioning of our logical abilities (think of what happens when you try reasoning wi... (read more)

Atheism has some properties that religion does not that may allow it to spread rapidly under certain cultural conditions that likely will exist in the future. For example, as technology continues to play a larger and larger role in our lives (and continues to spread to the poorest countries), that may well correlate with an increase in the respect for and interest in science that people have, as well as the number of people trained in scientific fields. As science tends to directly contradict many religious stories (such as the creation of the world in Genesis), and since levels of religious belief among scientists are generally much lower than among the population at large, that may increase the rate at which atheism spreads.

0pdf23ds
You know what Arthur C. Clark said about advanced technology. And indeed, it seems like most people treat it as nothing more than magic. Using technology doesn't create respect for science, unfortunately. Let alone interest. (Except in people predisposed to either.) I do see a possible way for technology to decrease faith, though. With technology, it's quickly becoming much easier to form much more accurate impressions of the world, which lessens the need for and impact of weird superstitions and rationalizations that often lead to or reinforce religious or otherwise irrational beliefs. For instance, I imagine the advent of videocameras has led to a decline in the belief of ghosts and spirits. When personal video life recorders become a standard part of your wearable computer, belief in apparitions will probably be nearly eliminated.
0mattnewport
My impression is that if anything recent technological progress in the developed world has gone along with a decrease in respect for and interest in science. While adherence to organized religion seems to have declined in much of the developed world it has often been replaced by equally non-scientific beliefs in new age mumbo jumbo and various kinds of 'spirituality'.

Your argument essentially amounts to the following:

  1. Melatonin significantly improves sleep quality.
  2. It has no side effects.
  3. It has low cost.

If all of these are true, then who wouldn't want to take it? However, you spend a lot of time on discussing point 3, but little on points 1 and 2, which are arguably the most important. How do you know that Melatonin really improves sleep quality so much? Is it just based on your personal experience (and perhaps that of other people you know)? If so, that is not convincing, as large scale randomized controlled studi... (read more)

-1Bugmaster
Upvoted for truth. The original article basically amounts to saying, "There's this drug that will totally improve your life, guaranteed, with no side effects, trust me ! Now go ahead and ingest it." Ummm yeah that's great, but I think I'll wait for some long-term studies to tell me things like this: * What are the long-term side effects of the drug ? * How will this drug interact with any other drugs I might be taking ? * What is the correct dose for me personally ? What are the consequences of an accidental overdose ? * Overall, how likely is this drug to kill or cripple me ? Until those questions are answered, I'm not taking this drug, regardless of how cheap it is.

spend a lot of time on discussing point 3 This is by far the biggest failing of the post, it grates hugely. It's cheap, we get it.

It is not a good idea to try and predict the likelihood of the emergence of future technologies by noting how these technologies failed to emerge in the past. The reason is that cryonics, singularities, and the like, are very obviously more likely to exist in the future than they were in the past (due to the invention of other new technologies), and hence the past failures cease to be relevant as the years pass. Just prior to the successful invention of most new technologies, there were many failed attempts, and hence it would seem (looking backward and applying the same reasoning) that the technology is unlikely ever to be possible.