Epistemic justification in the context of pursuit: a coherentist approach

Šešelja, Dunja; Straßer, Christian

doi:10.1007/s11229-014-0476-4

Cited by 43 publications

(33 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is time to reflect on Polanyi’s admonition, “It is only when we are confronted with the anxious dilemma of a live scientific issue, that the ambiguity of the formal processes and of various attenuated criteria of scientific truth becomes apparent, and leaves us without effective guidance” [ 291 ]. In other words, we have to think widely and beyond our disciplinary boundaries [ 291 , 292 ].…”

Section: Discussion Of Methods and Approachmentioning

confidence: 99%

Green Rust: The Simple Organizing ‘Seed’ of All Life?

Russell

2018

Life

126

View full text Add to dashboard Cite

Korenaga and coworkers presented evidence to suggest that the Earth’s mantle was dry and water filled the ocean to twice its present volume 4.3 billion years ago. Carbon dioxide was constantly exhaled during the mafic to ultramafic volcanic activity associated with magmatic plumes that produced the thick, dense, and relatively stable oceanic crust. In that setting, two distinct and major types of sub-marine hydrothermal vents were active: ~400 °C acidic springs, whose effluents bore vast quantities of iron into the ocean, and ~120 °C, highly alkaline, and reduced vents exhaling from the cooler, serpentinizing crust some distance from the heads of the plumes. When encountering the alkaline effluents, the iron from the plume head vents precipitated out, forming mounds likely surrounded by voluminous exhalative deposits similar to the banded iron formations known from the Archean. These mounds and the surrounding sediments, comprised micro or nano-crysts of the variable valence FeII/FeIII oxyhydroxide known as green rust. The precipitation of green rust, along with subsidiary iron sulfides and minor concentrations of nickel, cobalt, and molybdenum in the environment at the alkaline springs, may have established both the key bio-syntonic disequilibria and the means to properly make use of them—the elements needed to effect the essential inanimate-to-animate transitions that launched life. Specifically, in the submarine alkaline vent model for the emergence of life, it is first suggested that the redox-flexible green rust micro- and nano-crysts spontaneously precipitated to form barriers to the complete mixing of carbonic ocean and alkaline hydrothermal fluids. These barriers created and maintained steep ionic disequilibria. Second, the hydrous interlayers of green rust acted as engines that were powered by those ionic disequilibria and drove essential endergonic reactions. There, aided by sulfides and trace elements acting as catalytic promoters and electron transfer agents, nitrate could be reduced to ammonia and carbon dioxide to formate, while methane may have been oxidized to methyl and formyl groups. Acetate and higher carboxylic acids could then have been produced from these C1 molecules and aminated to amino acids, and thence oligomerized to offer peptide nests to phosphate and iron sulfides, and secreted to form primitive amyloid-bounded structures, leading conceivably to protocells.

show abstract

Section: Discussion Of Methods and Approachmentioning

confidence: 99%

Green Rust: The Simple Organizing ‘Seed’ of All Life?

Russell

2018

Life

126

View full text Add to dashboard Cite

show abstract

“…[275] But again, this is to misunderstand how completely new knowledge is come by. [276] The outcomes of theory and experiments should lead toward palpable goals. In this regard the AHV theory did predict the presence of offridge submarine alkaline vents in the present oceans, a prognosis met by the discovery of the Lost City submarine alkaline vents in 2000.…”

Section: Discussion Of Methods and Approachmentioning

confidence: 99%

Green Rust: The Simple Organizing ‘Seed’ of All Life?  <strong> </strong>

Russell

2018

Preprint

View full text Add to dashboard Cite

The most important problem of synthetic biology is…the reduction of carbonic acid. and Without the idea of spontaneous generation and a physical theory of life, the doctrine of evolution is a mutilated hypothesis without unity or cohesion.[1] Leduc, [1]Abstract: Korenaga and coworkers present evidence to suggest that 4.3 billion years ago the Earth's mantle was dry and water filled the ocean to twice its present volume.[2] CO2 was constantly exhaled during the mafic to ultramafic volcanic activity associated with magmatic plumes that produced the thick, dense and relatively stable oceanic crust. In that setting two distinct major types of sub-marine hydrothermal vents were active: ~400°C acidic springs whose effluents bore vast quantities of iron into the ocean, and ~120°C, highly alkaline and reduced vents exhaling from the cooler, serpentinizing crust at some distance from the heads of the plumes. When encountering the alkaline effluents, the iron from the plume head vents precipitated out forming mounds likely surrounded by voluminous exhalative deposits similar to the banded iron formations known from the Archean. These mounds and the surrounding sediments likely comprising nanocrysts of the variable valence FeII/FeIII oxyhydroxide, green rust. The precipitation of green rust, along with subsidiary iron sulfides and minor concentrations of Ni, Co and Mo in the environment at the alkaline springs may have established both the key bio-syntonic disequilibria, and the means to properly make use of them -those needed to drive the essential inanimate-to-animate transitions that launched life. In the submarine alkaline vent model for the emergence of life specifically it is first suggested that the redox-flexible green rust microcrysts spontaneously formed precipitated barriers to the complete mixing of carbonic ocean and alkaline hydrothermal fluids, barriers that created and maintained steep ionic disequilibria; and second, that the hydrous interlayers of green rust acted as 'engines' that were powered by those ionic disequilibria and drove essential endergonic reactions. There, aided by sulfides and trace elements acting as catalytic promoters and electron transfer agents, nitrate could be reduced to ammonia and carbon dioxide to formate, while methane may have been oxidized to methyl and formyl groups. Acetate and higher carboxylic acids could then have been produced from these C1 molecules and aminated to amino acids, and thence oligomerized to offer peptide nests to phosphate and iron sulfides and secreted to form primitive amyloid-bounded structures, leading conceivably to protocells.

show abstract

“…A statement is true/meaningful/useful based on its relationship with other statements (Š ešelja and Straßer 2014;Sosa 2003). This is in contrast to a perspective of correspondence where a statement is held to be true based on its relationship to empirical data.…”

Section: Circular Logicmentioning

confidence: 99%

The Science of Conceptual Systems: A Progress Report

Wallis

2015

Found Sci

View full text Add to dashboard Cite

In this paper I provide a brief history of the emerging science of conceptual systems, explain some methodologies, their sources of data, and the understandings that they have generated. I also provide suggestions for extending the science-based research in a variety of directions. Essentially, I am opening a conversation that asks how this line of research might be extended to gain new insights-and eventually develop more useful and generally accepted methods for creating and evaluating theory. This effort will support our ability to generate theory that is more effective in practical application as well as accelerating the development of theory to support advances in other sciences.

show abstract

Epistemic justification in the context of pursuit: a coherentist approach

Cited by 43 publications

References 44 publications

Green Rust: The Simple Organizing ‘Seed’ of All Life?

Green Rust: The Simple Organizing ‘Seed’ of All Life?

Green Rust: The Simple Organizing ‘Seed’ of All Life?  <strong> </strong>

The Science of Conceptual Systems: A Progress Report

Contact Info

Product

Resources

About

Epistemic justification in the context of pursuit: a coherentist approach

Cited by 43 publications

References 44 publications

Green Rust: The Simple Organizing ‘Seed’ of All Life?

Green Rust: The Simple Organizing ‘Seed’ of All Life?

Green Rust: The Simple Organizing &lsquo;Seed&rsquo; of All Life?&nbsp;&nbsp;<strong> </strong>

The Science of Conceptual Systems: A Progress Report

Contact Info

Product

Resources

About

Green Rust: The Simple Organizing ‘Seed’ of All Life? <strong> </strong>