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Sources of B12
Dietary sources of vitamin B12
Vitamin B12 Food
Serving size
B12 (mcg)
Clams
3 ounces
84
Liver
3 ounces
70.7
Fortified cereal
1 cup
6
Trout
3 ounces
5.4
Salmon
3 ounces
4.9
Tuna, canned
3 ounces
2.5
Beef
3 ounces
1.5
Nonfat plain Greek yogurt
6 ounces
1.3
Low-fat milk
1 cup
1.2
Ham
3 ounces
0.6
Egg
1 large
0.6
Chicken breast
3 ounces
0.3
The foods containing vitamin B12 are primarily animal meat, fish, eggs, and dairy. Vegetarians, people who are pregnant or nursing, and others who are at risk of deficiency may need to take supplements.
What is vitamin B12?
Vitamin B12 is a water-soluble vitamin with many essential functions in your body.
It’s necessary for keeping your nerves healthy and supporting the production of DNA and red blood cells, as well as maintaining normal brain function.
The Reference Daily Intake (RDI) is about 2.4 mcg but slightly higher for those who are pregnant or nursing (32).
Vitamin B12 is absorbed in your stomach with the help of a protein called intrinsic factor. This substance binds to the vitamin B12 molecule and helps your blood and cells absorb it.
Excess vitamin B12 is stored in your liver. If you consume more than the RDI, your body saves it for future use.
Ad Hominem to Quoque
Ad hominem tu quoque (lit: “You too!”) refers to a claim that the source making the argument has spoken or acted in a way inconsistent with the argument. In particular, if Source A criticizes the actions of Source B, a tu quoque response is that Source A has acted in the same way. This argument is fallacious because it does not disprove the argument; if the premise is true then Source A may be a hypocrite, but this does not make the statement less credible from a logical perspective. Indeed, Source A may be in a position to provide personal testimony on the negative consequences of the stated action.
False Dilemma
The false dilemma, or false dichotomy, is a logical fallacy where only two options are presented as the only possibilities, ignoring other viable alternatives. It’s often characterized by black-and-white thinking, where extremes are considered without acknowledging a spectrum of options. The fallacy can arise both intentionally, to force a choice or manipulate opinions, and accidentally, through oversight or ignorance. An example is Morton’s Fork, a scenario where two negative options are presented, both leading to the same undesirable outcome, like taxing nobles whether they appear wealthy or frugal. False choices, often used in arguments, deliberately ignore middle-ground options to polarize issues. This fallacy can be countered by recognizing and considering the full range of possibilities, including those not initially presented.
Regress argument
The regress argument, also known as the diallelus, is a problem in epistemology concerning the justification of propositions. It posits that every proposition requires justification, but this justification itself needs support, leading to an infinite questioning like an endless series of “why?” questions. This argument was attributed to Sextus Empiricus and Agrippa and is a response to Plato’s idea that knowledge is justified true belief.
The structure of the argument is such that for any known proposition (P), it must be justified by another proposition (P1), which in turn requires its own justification, leading to an infinite regress.
There are several responses to this problem:
- Foundationalism: It suggests that there are basic beliefs that do not require justification from other beliefs, thus stopping the infinite regress.
- Coherentism: This argues that beliefs are justified if they form part of a coherent system, where each belief is supported by the entire system rather than a linear chain.
- Infinitism: It accepts the endless chain of justifications.
- Skepticism: Skeptics doubt that beliefs can be justified beyond doubt, prompting continuous investigation.
Other synthesized approaches include:
- Common Sense: This approach, advocated by philosophers like Thomas Reid and G.E. Moore, assumes the most obvious claims as given without needing further justification.
- Critical Philosophy: Proposes that the role of philosophy is not to justify beliefs but to subject them to criticism, acting on those that withstand criticism the best.
- Pragmatism: Suggested by William James, this approach implies that people settle for a level of explanation that suits their psychological needs, with factors other than logic determining these needs.
In essence, the regress argument challenges the idea of finding ultimate justifications for knowledge, leading to various philosophical responses that seek to address this infinite demand for justification.
Limited Hangout
[A] limited hangout is spy jargon for a favorite and frequently used gimmick of the clandestine professionals. When their veil of secrecy is shredded and they can no longer rely on a phony cover story to misinform the public, they resort to admitting, sometimes even volunteering, some of the truth while still managing to withhold the key and damaging facts in the case. The public, however, is usually so intrigued by the new information that it never thinks to pursue the matter further. While used by the CIA and other intelligence organizations, the tactic has become popularized in the corporate and political spheres.
Abduction
Abduction is a method of logical inference introduced by Charles Sanders Peirce which comes prior to induction and deduction for which the colloquial name is to have a “hunch”. Abductive reasoning starts when an inquirer considers of a set of seemingly unrelated facts, armed with an intuition that they are somehow connected. The term abduction is commonly presumed to mean the same thing as hypothesis; however, an abduction is actually the process of inference that produces a hypothesis as its end result. It is used in both philosophy and computing.
Deduction allows deriving b as a consequence of a. In other words, deduction is the process of deriving the consequences of what is assumed. Given the truth of the assumptions, a valid deduction guarantees the truth of the conclusion. It is true by definition and is independent of sense experience. For example, if it is true (given) that the sum of the angles is 180° in all triangles, and if a certain triangle has angles of 90° and 30°, then it can be deduced that the third angle is 60°.Induction allows inferring a entails b from multiple instantiations of a and b at the same time.
Induction is the process of inferring probable conditional relevance as a result of observing multiple antecedents and consequents. An inductive statement requires empirical evidence for it to be true. For example, the statement “it’s snowing, so it must be cold”, can be induced from the experience of the two being true together.
Abduction allows inferring a as an explanation of b. Because of this, abduction allows the precondition a to be inferred from the consequence b.
Deduction and abduction thus differ in the direction in which a rule like “a entails b” is used for inference. As such abduction is formally equivalent to the logical fallacy affirming the consequent or Post hoc ergo propter hoc, because there are multiple possible explanations for b.
Unlike deduction and in some sense induction, abduction can produce results that are incorrect within its formal system. Hence the conclusions of abduction can only be made valid by separately checking them with a different method, either by deduction or exhaustive induction. However, it can still be useful as a heuristic, especially when something is known about the likelihood of different causes for b.
For Want of a Nail
For want of a nail the shoe was lost.For want of a shoe the horse was lost.For want of a horse the rider was lost.For want of a rider the battle was lost.For want of a battle the kingdom was lost.And all for the want of a horseshoe nail.
Illusion of control
The illusion of control is a psychological phenomenon where individuals believe they have influence over outcomes that are actually beyond their control. This has been demonstrated in various experiments and is thought to impact behaviors like gambling and belief in the paranormal. In experiments, subjects tried to influence the lighting of “Score” or “No Score” lights, using buttons, but their control was either non-existent or variable. Their perception of control was influenced by the frequency of the “Score” light being lit, regardless of their actual influence. Ellen Langer’s experiments highlighted the presence of “skill cues” in chance situations, such as choice and competition, which enhance this illusion. An example of this fallacy is observed in casinos, where people throw dice differently for high or low numbers, despite it being a game of chance. This illusion can also lead to beliefs in abilities like psychokinesis, as individuals overestimate their control over random events like coin tosses.
Hedonic treadmill
The hedonic treadmill, or hedonic adaptation, is a concept suggesting that people maintain a stable level of happiness despite significant life changes or events. Coined by Brickman and Campbell in 1971, it implies that as circumstances improve, like income increases, expectations and desires rise, leading to no lasting increase in happiness. Happiness is thought to be influenced by a three-factor model: 50% genetics, 10% life circumstances, and 40% intentional activities.
Major empirical studies, such as those by Lykken & Tellegen and Diener & Fujita, support this model, showing a significant genetic influence on happiness and a tendency for people’s satisfaction levels to fluctuate within a stable range over time. The concept has been revised to consider life goals and personality as important factors in subjective well-being.
In practical applications, understanding the hedonic set point can assist in clinical psychology. It helps in treating conditions like depression by recognizing temporary deviations from this set point and using intentional activities to return to it.
Controversies around the hedonic treadmill include the idea that the set point is a genetic tendency rather than a fixed criterion, and the historical neglect of positive emotions. Studies suggest that excessive drug use can alter an individual’s hedonic set point.
Nihilism
Nihilism, from the Latin “nihil” meaning “nothing,” is a philosophical doctrine that negates one or more meaningful aspects of life. Its most common form, existential nihilism, posits that life lacks objective meaning, purpose, or intrinsic value. Moral nihilists believe that morality is not inherently real and any moral values are artificially constructed. Nihilism can also manifest in epistemological, metaphysical, and ontological forms, challenging the possibility of knowledge or the existence of certain aspects of reality.
The term is often linked with a sense of despair or pointlessness, known as anomie, and has been associated with various movements like Futurism and deconstructionism. Nihilism has been attributed to certain time periods, with postmodernity often described as a nihilistic epoch.
Historically, the concept was popularized by Ivan Turgenev in the 19th century and had earlier philosophical roots in the works of Friedrich Heinrich Jacobi, who criticized rationalism as leading to nihilism. Nihilism was central to the philosophies of Søren Kierkegaard and Friedrich Nietzsche. Kierkegaard’s concept of “levelling” described a suppression of individuality leading to a meaningless existence, while Nietzsche’s detailed examination of nihilism described it as a consequence of the decline of Christianity and traditional values, leading to a crisis in meaning.
Postmodern thinkers, influenced by Nietzsche and Martin Heidegger’s interpretations, have further explored nihilism, particularly in relation to the deconstruction of truths and values in Western culture. Cultural manifestations of nihilism have been observed in various art forms, including television, music, and the Dada movement. Nihilism also appears in different forms, like moral, existential, epistemological, and metaphysical nihilism, each challenging different aspects of reality and human understanding.
Reification
- Reification: Treating an abstract belief or idea as if it were a concrete, real entity.
- Common in Literature: Accepted metaphorically in literature and discourse, but a fallacy in logical arguments.
- Pathetic Fallacy: A subset of reification, attributing human qualities to non-human entities.
- Etymology: Derived from Latin, meaning “thing-making”.
- Occurrence: Happens when simplifying complex natural or social processes, or invalid usage of words.
- Reification Circle: When an artificial norm becomes perceived as natural over time.
- Quine’s View: All linguistic categorizations potentially involve reification, requiring abstraction.
- Fallacy of Misplaced Concreteness: Whitehead’s concept of mistaking abstract concepts for physical reality.
- Distinction from Hypostatization: Based on the type of abstractions involved (philosophical or ideological).
- Physics Application: Suggestion that concepts like Dark Matter may be reifications, not actual entities.
- Legal and Ethical Examples: Treating states, societies, or corporations as beings with human qualities.
- Similar Fallacies: Includes pathetic fallacy and animistic fallacy; distinct from other ambiguities like accentus, amphiboly, composition, and division.
Charlatans
A charlatan is one who only gives positive advice, exploiting our gullibility and sucker-proneness for recipes that hit you in a flash as just obvious, then evaporate later as you forget them. Just look at the “how to” books with, in their title, “Ten Steps for—” (fill in: enrichment, weight loss, making friends, innovation, getting elected, building muscles, finding a husband, running an orphanage, etc.). Yet in practice it is the negative that’s used by the pros, those selected by evolution: chess grandmasters usually win by not losing; people become rich by not going bust (particularly when others do); religions are mostly about interdicts; the learning of life is about what to avoid. You reduce most of your personal risks of accident thanks to a small number of measures.Additionally, the charlatan focuses only on the positive because in most circumstances fraught with a high degree of randomness (those where charlatans tend to operate), one cannot really tell if a successful person has skills, or if a person with skills will succeed— but we can pretty much predict the negative, that a person totally devoid of skills will eventually fail.
Regression fallacy
- Definition: Regression fallacy is ascribing cause to natural fluctuations, failing to account for natural variances.
- Common in Predictions: Often seen in predicting continued exceptional results in fluctuating phenomena like stock prices or sports scores.
- Origin: Coined by Sir Francis Galton in studying hereditary traits like height, observing regression towards the mean.
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Examples in Everyday Life:
- Attributing pain relief to a doctor’s treatment when it’s a natural regression.
- Believing punishment improves grades, ignoring natural performance variations.
- Crediting a speed camera for reduced accidents without considering natural fluctuations.
- “Sports Illustrated Cover Jinx” misunderstanding exceptional performances in sports as a jinx rather than a regression.
- Misapplication Risks: Overlooking valid explanations by attributing all events to random fluctuations, as seen in the misinterpretation of the German retreat in WWII.
- Misinterpretation in Business: Horace Secrist’s book mistakenly attributed constant profit rates to regression, a misunderstanding criticized by Harold Hotelling.
- Educational Testing Misinterpretation: In Massachusetts, misattributed school performance improvements to policies, not recognizing regression to the mean.
- Kahneman’s Observation: Noted that regression can explain why punishment seems effective and praise backfires in skill learning.
- Law Enforcement and Traffic Safety: UK’s traffic camera policy overstates benefits due to not accounting for regression effects.
- Sports Performance: “Sophomore Slump” and “Sports Illustrated Cover Jinx” in sports are examples of regression to the mean, also applicable to improved performances.
Preface paradox
- Introduction: The preface paradox was introduced by David Makinson in 1965.
- Similarity to Lottery Paradox: It discusses the rationality of accepting mutually incompatible beliefs.
- Contrast to Moore’s Paradox: Preface paradox nullifies a claim contrary to belief, unlike Moore’s paradox which asserts a claim contrary to belief.
- Preface Custom: Authors often acknowledge potential errors in their book’s preface.
- Rational Belief in Truthfulness: Authors believe each statement in their book is true based on careful checking and review.
- Acknowledgment of Potential Errors: Despite thorough checks, authors acknowledge the likelihood of undetected errors in their work.
- Paradoxical Conclusion: Authors rationally believe that their book is both error-free and likely to contain errors.
Equivocation
- Nature of Equivocation: A formal and informal fallacy involving misleading use of a term with multiple meanings.
- Difference from Amphiboly: Equivocation arises from word use, while amphiboly from punctuation or syntax.
- Use in Syllogisms: Involves changing the meaning of a term within a logical argument.
- Example with “Light”: Misleading use of “light” to mean both “not heavy” and “bright”.
- Semantic Shift: Gradual change in the context to achieve equivocation by treating different meanings as equivalent.
- Example with “Man”: Ambiguity between “human” and “male human” in phrases like “man-eating sharks”.
- Metaphor as Equivocation: Using words metaphorically, like “jackass” to imply a stupid person rather than a male donkey.
- Switch-Referencing: Changing the referent of a word without clear identification.
- Example with “Theory”: Misusing “theory” to imply evolution is speculative by switching from a scientific to a colloquial context.
- “Better than Nothing” Fallacy: Switch-referencing in comparing margarine and butter, using “nothing” in different contexts.
- Politician’s Syllogism: Simplistic reasoning, as satirized in “Yes Minister”, implying necessity from mere availability of an option.
- Related Fallacies: Includes false attribution, quoting out of context, No true Scotsman, and shifting ground fallacy.
Dunning Kruger
- Cognitive Bias: The Dunning-Kruger effect describes a cognitive bias where unskilled people overestimate their abilities and skilled people underestimate theirs.
- Poor Self-Assessment: Unskilled individuals lack the metacognitive ability to recognize their errors, leading to illusory superiority.
- Underestimation by Skilled People: Highly skilled individuals underrate their abilities, suffering from illusory inferiority.
- Misjudgment of Competence: Incompetent people often rate their ability higher than more competent people do.
- Error Sources: Incompetent individuals’ errors stem from self-misjudgment, while competent ones’ errors come from misjudging others.
- Historical Context: The concept, discussed by Justin Kruger and David Dunning in 1999, echoes ideas from Darwin, Russell, and Yeats about confidence and ignorance.
- Broad Application: The effect applies across various skills and intellectual demands, like chess, golf, or driving.
- Not Limited to Certain Skills: It’s not confined to high-order cognitive skills or specific knowledge areas.
- Prevalence in Educated Individuals: Highlighted by the finding that 94% of college professors rate their work as above average.
Franklin’s gambit
- Franklin’s Gambit: Described as the process of finding or making a reason for actions one is already inclined to take, highlighting the human tendency to rationalize pre-determined choices.
- Benjamin Franklin’s Insight: Despite advocating rational decision-making through moral or prudential algebra, Franklin acknowledged that people, including himself, often justify their actions post hoc, based on desires rather than objective analysis.
- Commercial Application: The author notes that economic models developed for businesses were rarely used for actual decision-making but served to justify decisions to stakeholders, illustrating Franklin’s Gambit in practice.
- Policy Disasters: Franklin’s Gambit played a role in significant policy failures, such as the Iraq War and the 2007-2008 financial crisis, where selective evidence and distorted reality justified preconceived actions.
- Formalized Procedures in Decision-making: Many decision-making processes in business and policy-making are criticized for emphasizing procedure over outcome, leading to decisions that are justified by the process rather than their intrinsic value.
- Critique of Objective Methods: Challenges the belief in an objective method for solving complex problems, arguing that good outcomes do not necessarily stem from good procedures, and vice versa.
- Impact on Creativity and Leadership: Suggests that emphasizing procedural justification over actual outcomes could stifle creativity and effectiveness in various fields, including business and politics.
- Personal Reflection: The author reflects on their own experiences in economic consultancy, realizing that models sold to clients were not used for decision-making but for rationalizing pre-made decisions, reinforcing the practical application of Franklin’s Gambit.
Gaslighting
- Definition: Gaslighting is psychological abuse where false information makes a victim doubt their memory, perception, and sanity.
- Origins: Term originates from the play and film “Gas Light,” where a husband manipulates the environment to make his wife doubt her perceptions.
- Usage: The term has been used colloquially since the 1970s and in clinical literature to describe reality-manipulation efforts.
- Introjection: Gaslighting involves the projection and introjection of psychic conflicts from the abuser to the victim.
- Victim’s Response: Resistance to gaslighting involves trusting one’s own judgments and establishing “counterstories.”
- Clinical Observations: Often used by sociopaths, who are charming liars denying their wrongdoing, causing victims to doubt themselves.
- In Marital Infidelity: Observed in cases of marital infidelity, gaslighting can contribute to severe psychological distress, even leading to a breakdown or suicide.
- Impact on Victims: Victims may experience a breakdown of their ability to trust their own judgment and perceptions.
Reality tunnel
- Concept Origin: Coined by Timothy Leary and popularized by Robert Anton Wilson, relating to representative realism.
- Theory Overview: Individuals perceive the world differently through mental “filters” shaped by their beliefs and experiences.
- Subjective Truth: Emphasizes that truth varies per individual, as “Truth is in the eye of the beholder.”
- Objective Truth Acknowledgment: Doesn’t deny objective truth, but notes our access is mediated by subjective factors.
- Group Reality Tunnels: The concept applies to groups sharing common beliefs, like fundamentalist Christians or scientific materialists.
- Confirmation Bias: Related to the tendency to focus on observations confirming our beliefs, often making reality tunnels invisible to their inhabitants.
- Reality Tunnel as Artistic Creation: Each person’s reality tunnel is seen as a personal creation, often unconsciously formed.
- Altering Reality Tunnels: Techniques like NLP, hypnosis, and meditation can change reality tunnels, potentially broadening perspectives.
- Influences on Perception: Sensory data is filtered by various factors like biology, culture, education, experiences, and mental state.
- Cognitive Economy: Our brain filters sensory information to prioritize what’s important for survival and basic needs.
- Consensus Trance: Introduced by Charles Tart, likening normal consciousness to a hypnotic trance induced by societal norms.
- Overcoming Conditioned Realities: Practices like Zen and Sufism aim to transcend conditioned perceptions.
- Constructivism: A psychological response advocating awareness and flexibility in one’s reality tunnel, embracing different perspectives.
Absurdism
Absurdism is a philosophy highlighting the futile human effort to find inherent meaning in the universe, as it posits no such meaning exists for individuals. It emerged from the existentialist movement, influenced by Søren Kierkegaard and later by Albert Camus. Kierkegaard and Camus propose three responses to life’s inherent absurdity: suicide, which they reject; religious belief, seen differently by both philosophers; and acceptance of the absurd. Camus suggests embracing absurdity leads to personal freedom and creating individual meaning, whereas Kierkegaard considers faith in God an absurd but necessary leap. Absurdism differs from existentialism and nihilism in its approach to life’s meaning and the individual’s response to this dilemma. Camus emphasizes the concept of “acceptance without resignation,” promoting a life of passionate engagement despite the absurdity of the human condition.
Capability Bias
The tendency to believe that if the average performance is close to a specific target, then the distribution of the data set is tight (or narrow).Long known, but recently codified bias.
Subjective validation
Subjective validation, sometimes called personal validation effect, is a cognitive bias by which a person will consider a statement or another piece of information to be correct if it has any personal meaning or significance to them. In other words, a person whose opinion is affected by subjective validation will perceive two unrelated events (i.e., a coincidence) to be related because their personal belief demands that they be related. Closely related to the Forer effect, subjective validation is an important element in cold reading. It is considered to be the main reason behind most reports of paranormal phenomena.
On Exactitude in Science
“On Exactitude in Science” or “On Rigor in Science” (the original Spanish-language title is “Del rigor en la ciencia”) is a one-paragraph short story by Jorge Luis Borges, about the map/territory relation, written in the form of a literary forgery. In it, a great Empire created a map that was so detailed it was as large as the Empire itself. The actual map grew and decayed as the Empire itself conquered or lost territory. When the Empire crumbled, all that was left was the map. In Baudrillard’s rendition, it is the map that people live in, the simulation of reality, and it is reality that is crumbling away from disuse. The transition from signs which dissimulate something to signs which dissimulate that there is nothing, marks the decisive turning point. The first implies a theology of truth and secrecy (to which the notion of ideology still belongs). The second inaugurates an age of simulacra and simulation, in which there is no longer any God to recognize his own, nor any last judgement to separate truth from false, the real from its artificial resurrection, since everything is already dead and risen in advance.[3]Thus, Baudrillard further distinguishes three orders of simulacra associated with three historical periods: first order simulacra belong to the pre-modern era in which images were clearly copies or representations of some original; second order simulacra arise with the industrial revolution, photography and mass reproduction technologies in the nineteenth century - the image obscures (dissimulates) and threatens to displace the real; third order simulacra are part of our postmodern era; the image is said to completely precede and determine the real, such that it is no longer possible to peel away layers of representation to arrive at some original.It is important to note that when Baudrillard refers to the “precession of simulacra” in Simulacra and Simulation, he is referring to the way simulacra have come to precede the real in the sense mentioned above, rather than to any succession of historical phases of the image. Referring to “On Exactitude in Science”, he argued that just as for contemporary society the simulated copy had superseded the original object, so, too, the map had come to precede the geographic territory (c.f. Map–territory relation), e.g. the first Gulf War (see below): the image of war preceded real war. Henceforth, it is the map that precedes the territory - precession of simulacra - it is the map that engenders the territory and if we were to revive the fable today, it would be the territory whose shreds are slowly rotting across the map.[4] Contents[hide] 1 Plot 2 Publication history 3 Notes 4 External links[edit] PlotThe story elaborates on a concept in Lewis Carroll’s Sylvie and Bruno Concluded: a fictional map that had “the scale of a mile to the mile.” One of Carroll’s characters notes some practical difficulties with this map and states that “we now use the country itself, as its own map, and I assure you it does nearly as well.”The Borges story, credited falsely as a quotation from “Suarez Miranda, Viajes de varones prudentes, Libro IV, Cap. XLV, Lerida, 1658”, imagines an empire where the science of cartography becomes so exact that only a map on the same scale as the empire itself will suffice. “[S]ucceeding Generations… came to judge a map of such Magnitude cumbersome… In the western Deserts, tattered Fragments of the Map are still to be found, Sheltering an occasional Beast or beggar…“[1][edit] Publication historyThe story was first published in the March 1946 edition of Los Anales de Buenos Aires, año 1, no. 3 as part of a piece called “Museo” under the name B. Lynch Davis, a joint pseudonym of Borges and Adolfo Bioy Casares; that piece credited it as the work of “Suarez Miranda”. It was collected later that year in the 1946 second Argentinian edition of Borges’s Historia Universal de la Infamia (A Universal History of Infamy).[2] The names “B. Lynch Davis” and “Suarez Miranda” would be combined later that year to form another pseudonym, B. Suarez Lynch, under which Borges and Bioy Casares published Un modelo para la muerte, a collection of detective fiction.
Slothful Induction
A slothful induction is a fallacy in which an inductive argument is denied its proper conclusion, despite strong evidence for inference.[edit] Examples “Hugo has had twelve accidents in the last six months, yet he insists that it is just a coincidence and not his fault.”