Quote from ZZZzzzzzzz:
(We see a lot of this in this thread)
Argument from ignorance
The two most common forms of the argument from ignorance, both fallacious, can be reduced to the following form:
* Something is currently unexplained or insufficiently explained, so it was not (or could not be) true.
* Because there appears to be a lack of evidence for one hypothesis, another chosen hypothesis is therefore considered proven.
An adage regarding this fallacy from the philosophy of science is that "absence of evidence is not evidence of absence": Not having evidence for something is not proof that something is not or cannot be true. Similarly, merely not having evidence for a particular proposition is not proof that an alternative proposition is instead the case - it is in fact simply lack of evidence, and nothing more.
http://en.wikipedia.org/wiki/Argument_from_ignorance
I'll say we do. This is where you live.