Inflation and baryogenesis remain more speculative features of current Big Bang models: they explain important features of the early universe, but could be replaced by alternative ideas without affecting the rest of the theory.

The concept of impact cratering remained more or less speculative until the 1960s.

The more speculative versions of Gaia, including versions in which it is believed that the Earth is actually conscious, sentient, and highly intelligent, are usually considered outside the bounds of what is usually considered science.

In a larger and more speculative sense, the theory suggests that the entire universe can be seen as a two-dimensional information structure " painted " on the cosmological horizon, such that the three dimensions we observe are only an effective description at macroscopic scales and at low energies.

Other practical motivations for interplanetary travel are more speculative, because our current technologies are not yet advanced enough to support test projects.

Among more speculative hazards, at least one in particular is well known and documented.

This view was challenged by the " rationalist " Mutazilite philosophers, who held a more Hellenic view, reason above revelation, and as such are known to modern scholars as the first speculative theologians of Islam ; they were supported by a secular aristocracy who sought freedom of action independent of the Caliphate.

An even more speculative hypothesis is that intense radiation from a nearby supernova was responsible for the extinctions.

In other, even more speculative interpretations, Pytheas returned north and the Tanais is not the Don but is a northern river, such as the Elbe river.

Many of London's pubs are known to have been used by famous people, but in some cases, such as the association between Samuel Johnson and Ye Olde Cheshire Cheese, this is speculative, based on little more than the fact that the person is known to have lived nearby.

Much 19th century physics has been re-evaluated as the " classical limit " of quantum mechanics, and its more advanced developments in terms of quantum field theory, string theory, and speculative quantum gravity theories.

The 6x86 and MII series did exactly this, but was more advanced ; it implemented superscalar speculative execution via register renaming, directly at the x86-semantic level.

# Later, more powerful processors, such as Intel P6, AMD K6, AMD K7, and Pentium 4, employed similar dynamic buffering and scheduling principles and implemented loosely coupled superscalar ( and speculative ) execution of micro-operation sequences generated from several parallel x86 decoding stages.

This together with a cultural climate that places more interest in historical and fantastic speculative fiction then the futuristic made the mostly German and French science-fiction sparse and mostly aimed at children.

A speculative, more complex " chip factory " was specified to produce the computer and electronic systems, but the designers also said that it might prove practical to ship the chips from Earth as if they were " vitamins ".

Scientific theories are the most reliable, rigorous, and comprehensive form of scientific knowledge, in contrast to more common uses of the word " theory " that imply that something is unproven or speculative.

As an everyday word, theoria,, meant " a looking at, viewing, beholding ", but in more technical contexts it came to refer to contemplative or speculative understandings of natural things, such as those of natural philosophers, as opposed to more practical ways of knowing things, like that of skilled orators or artisans.

Charlene Ball writes in Women's Studies Encyclopedia that use of speculative fiction to explore gender roles in future societies has been more common in the United States compared to Europe and elsewhere.

A still more speculative concept is antimatter catalyzed nuclear pulse propulsion, which would use tiny quantities of antimatter to catalyze a fission and fusion reaction, allowing much smaller fusion explosions to be created.

The Alcubierre drive ( or Alcubierre metric see: Metric tensor ) is a speculative idea based on a valid solution of the Einstein field equations as proposed by Miguel Alcubierre by which a spacecraft may achieve faster-than-light ( FTL ) travel, making travel to other stars more feasible.

Much later, after Ulam's death, another friend, Gian-Carlo Rota, asserted that the attack did change Ulam's personality ; afterwards, he turned from rigorous pure mathematics to more speculative conjectures concerning the application of mathematics to physics and biology.

It is a speculative, non-rigorous argument, that relies on an analogy or in intuition, that allows to achieve a result or approximation to be checked after with more rigor, otherwise the results are of doubt.

Because the responsibility for resolving the issue lay with the President, rather than with his doctors, nothing raises more surely for us the difficulties simple goodness faces in dealing with complex moral problems under political pressure.

`` I had natural sock '', he says, ' as a storyteller and was precociously good at description, dialogue, and most of the other staples of the fiction-writer's trade but I was bugged by a mammoth complex of thoughts and feelings that prevented me from doing more than just diddling the surface of sustained fiction-writing ''.

More importantly, several of the more advanced of the less developed countries have found through experience that they must plan their own complex investment programs for at least 5 years forward and tentatively for considerably more than that if they are to be sure that the various interdependent activities involved are all to take place in the proper sequence.

First, most products tend to become more complex.

As markets become larger and marketing more complex, the costs of an error become progressively larger.

Even more complex and obviously cortically induced forms of emotional arousal could be elicited in monkey A on seeing monkey B ( but not a rabbit ) in emotional stress.

In societies like ours, however, its place is less clear and more complex.

In considering roleplaying for analysis we enter a more complex area, since we are now no longer dealing with a simple over-all decision but rather with the examination and evaluation of many elements seen in dynamic functioning.

This behavior is more `` veridical '' -- or true -- than other testing behavior for some types of evaluation, and so can give quick and accurate estimates of complex functioning.

Tone systems are certainly more complex than the number of units would suggest, and often analytically more difficult than much larger consonantal systems.

And the more complex the morphophonemic system is in relation to the phonemic base, the less easily a phonemic system will be analysed without close attention to the morphophonemics -- at least, the less satisfying will a phonemic statement be if it cannot be related through morphophonemic rules to grammatically meaningful structures.

Centrally, however, the administrative problem was more complex and the sheer prestige of office was very likely an unfair advantage.

costs actually vary in much more complex ways.

The vases which resulted had different shapes, far more complex decoration, and a larger sense of style.

And even more complex items can be interpreted to conform to one's own point of view, which is by nature so personal.

It's much more complex than that.

The problem becomes even more complex where an enterprise is engaged in the manufacture of a wide variety of other goods in addition to the heavy electrical equipment.

It goes from the basics, the analysis of simple terms in the Categories, the analysis of propositions and their elementary relations in On Interpretation, to the study of more complex forms, namely, syllogisms ( in the Analytics ) and dialectics ( in the Topics and Sophistical Refutations ).

Those species that breed in smaller water bodies or other specialised habitats tend to have more complex patterns of behaviour in the care of their young.

A more complex case

For more complex designs the

It is the belief of Old Babylonian scholars such as Carruccio that Old Babylonians " may have used the abacus for the operations of addition and subtraction ; however, this primitive device proved difficult to use for more complex calculations ".

Ramsey ( 2004: 340 ) stated that " the genetic relationship between Korean and Japanese, if it in fact exists, is probably more complex and distant than we can imagine on the basis of our present state of knowledge ", a concept later restated by Lee ( 2011 ).