AtheistWorld.com
I once put forth an argument that agnostics are simply weak people for whom logic is not of concern.
Agnosticism is a much more complex position than seems at first sight.I agree that it is primarily concerned with
knowledge [usually defined as meaning 'scientific,objective,knowledge' for which we have arguments beyond all reasonable doubt] however this is not enough to engulf the whole domain of agnosticism.Indeed those who say that 'God cannot be known [forever]','hard agnostics' in my acception,are rather in a minority among agnostics.The majority of them simply say that we do not have,for the moment,evidence beyond all reasonable doubt pro/con God therefore they cannot make a rational decision to believe or to disbelieve prefering neither to believe nor to disbelieve ['suspend judgement regarding belief/disbelief' but only for the moment]-'weak' agnosticism in my acception.
Under the generic umbrella of 'weak' agnosticism there are two main subtypes:for some agnostics only scientific arguments proving/disproving the existence of God beyond all reasonable doubt are accepted when dealing with the belief/disbelief problem whilst for some others 'sufficient reasons to believe/disbelieve do not mean only 'objective' (scientific) knowledge but also enough evidence [different from proof,arguments beyond all reasonable doubt or certitudes!] that can be interpreted (subjectively varying from person to person-there is no unique,rigid standard) as supporting belief/disbelief.
For example in the latter case of 'weak' agnosticism the agnostic conlcudes that there is also enough mysterious 'subjective evidence' that might be taken into account,that in spite of the 'successes' of naturalism this is still not an argument beyond all reasonable doubt against God's existence [naturalism is still a conjecture indeed] and moreover that there are still enough ontological questions where 'God hypothesis' is still on equal foot in absolute with scientific hypotheses [the apparition of the universe,why should the laws of nature remain basically the same for long periods of time and so on].Based on all these facts a 'weak' agnostic of the second type [the first type 'weak' agnostic take into account only objective,scientific data] arrive also at the personal conclusion that it is impossible to have a definite stance in the problem of belief/disbelief preffering to neither believe nor disbelieve.
An agnostic atheist [also of two kinds depending on the data accepted: only objective data or more] for example would arrive at the personal conclusion that God hypothesis is inferior to naturalism preffering to disbelieve whilst an agnostic theist [like me] would conlcude that God hypothesis is more probable to be true in the light of the known data available.
Because we arrived until here I think it's interesting to define 'strong' atheism also.Well in my acception it is of two types: there are some 'strong atheists' who claim that science has already proved with arguments beyond all reasonable doubt that God hypothesis is 'objectively' inferior to naturalism and therefore all would be rational person is forced to disbelieve ['fundametalist 'strong atheism'] and some others who merely say that all known objective facts provide a sufficient basis for disbelief [no claim that belief is nonrational or irrational however,also no direct mention of the fact that we do not have yet sufficient knowledge to settle the problem of God existence/nonexistence as do agnostic atheists].My categories do not inlcude the so called 'weak atheism',clearly an artificial position anyway in no case 'atheistic' [see some of my former posts where I've explained in detail why],since simple 'lack of belief' is only a form of 'weak agnosticism' of the second type...
Returning at your objection against what I name 'strong' agnosticism the most common answer I received from such people was that 'we cannot prove or disprove God with arguments beyond all reasonable doubt'.I do not agree with this,future can be full of surprises,moreover I think there can be established standards even today.
For example here is the standard I propose [taken from a post of mine on another site-it is from an argument against the common mith that 'you cannot prove a negative'-implying all possible cases] that will make 'God hypothesis' less probable 'objectively' [making belief nonrational also]:
"1.A 'theory of everything'.This in itself does not give sufficient arguments because there is no reason to suppose that this theory is unique and infallible (it represents merely a fallible objective truth-there is no good reason to think otherwise) and moreover does not make 'God hypothesis' less probable but corroborated with:
2.The computational approach of consciousness (using boolean algebra) is proved beyond all reasonable doubt as being correct.
Here by arguments beyond all reasonable doubt I mean a detailed,'working',description of the dynamics of the brain,a 'holistic' view (even if we had the proof that all mental states correlate with physical states-anyway far from being achieved now-this would,simply,be not enough).Another chance is to emulate a human mind using technology:an android whose consciousness is indistinguishable from that of a human being for example.
3.'Confirming' repeatedly abiogenesis (in intersubjective experiments).
4.A multiverse hypothesis,fully compatible with alll observed facts,consistently 'confirmed' therefore,whose ontology is confirmed also experimentally (even indirectly).For example the discovery that the so called 'false vacuum' (the main theoretical 'entity' posited as existing ontologically by Guth's multiverse hypothesis) is a reality would be enough.
This approach is totally compatible with the scientific method,the God hypothesis would be proved [in case that the above requirements will be 'confirmed' experimentally] as being less probable in a sound,scientific,manner,exactly how,for example,the aether was rendered less probable 'objectively' by the Michelson-Morley experiment.
Still this does not imply certitudes,the aether or God could still exist in spite of that 'sufficient evidence',however this would entitle naturalism to 'graduate' from the status of simple conjecture to that of 'fallible scientific truth'.Which would make belief in God nonrational [according with the requirements of logic] exactly how belief in a flat Earth or in aether [as it was conceived in the 19-th century at least] is nonrational.
Anyway what counts,and this is what I wanted to underline,is that till then the naturalist approach is only a conjecture,the claims that science and logic compel all rational people to be skeptical or to disbelieve in God are [still] totally unfounded."