Pedro Gomes said:
Robin and Bri, many thanks for your comments (here and here) on my diagram, and also the link to the very interesting thread on Definition of Agnosticism. Clearly, I was being over-simplistic and inaccurate: there are more things in heaven and earth than are dreamt of in my philosophy.
Eventually, I’d like to come up with some other diagram that could address the range of concepts and subtleties that are relevant to this issue. But I suspect it would hardly be just a triangle and a dotted line...
I look forward to seeing what you come up with. From that other thread, this is the best I could come up with:
<table width="100%" border="1" cellspacing="1" cellpadding="5"><tr><td bgcolor="#cccccc"><div align="center">
Spectrum O' Atheism / Agnosticism</div></td></tr><tr><td bgcolor="#ccffff">
Gnostic theist: "I know (for certain) that God exists."</td></tr><tr><td bgcolor="#99ffff">
Agnostic theist (A.K.A. weak agnostic theist): "It is currently impossible to know (for certain) if God exists (although we may know in the future), but I believe that God exists."</td></tr><tr><td bgcolor="aqua">
Agnostic (A.K.A. weak agnostic weak atheist): "It is currently impossible to know (for certain) if any god exists (although we may know in the future), therefore I lack a belief in (the existance of) any god."</td></tr><tr><td bgcolor="#00cccc">
Agnostic atheist (A.K.A. weak agnostic strong atheist): "It is currently impossible to know (for certain) if any god exists (although we may know in the future), but I believe that no god exists."</td></tr><tr><td bgcolor="#009999">
Gnostic atheist (A.K.A. gnostic strong atheist): "I know (for certain) that no god exists."</td></tr></table>
There are other beliefs such as "strong agnostic" beliefs, but very few people hold to them in practice. There are some such as "gnostic weak atheist" that most agree are contradictory. There are also a variety of "diest" beliefs (which are a subset of "theism" and hold that a god created the universe, but doesn't interfere with it).
And of course, there are certainly entire spectrums of "strength" of belief in each of these categories.
-Bri