Why the religious will never admit you won the argument (and why they don't care)

[RoadRunner79]

What evidence is firmly against it?

The complete lack of requisite archaeological and anthropological evidence to establish support for that claim. We know where Egypt is, and where to dig to find information about the events and culture of the time period during which the Jews are supposed to have been enslaved there. As it turns out, we do have a good bit of information from that time, and not one shred of it suggests mass enslavement of Jews in Egypt, nor their wandering in the nearby desert for 40 years. If the Bible's claims were true, there would absolutely be evidence in this case. It's one of the rare instances where absence of evidence does actually constitute evidence of absence.

One of the most important indicators of a model's accuracy is its predictive power. The Theory of Evolution, for instance, has been able to predict the discovery of certain kinds of fossils in specific strata of rocks. Predicting when and where a scientific discovery will happen is a HUGE checkmark in favor of that model's veracity.

If the Bible were accurate, we would expect it to have the same predictive power. If the Bible is true, and it says the Jews were in a certain place in large numbers during a certain time period, then we should be able to go to that place, dig up things from that time period, and find evidence of huge numbers of Jews. We have done that digging, and we've found plenty of evidence to suggest that people were living in those areas at that time...just not a bunch of Jewish slaves. That really doesn't look good for the Biblical model.

Your post made me question.... what did they find?   I have heard, that archeology is not an exact science; and I have seen a number of archeology websites quote Carl Sagan “The absence of evidence is not the evidence of absence.”  Some recall it being the first thing that their professors taught them.  

I do agree, that currently, we do not have any evidence, which puts the Jewish people specifically enslaved in Egypt.  But what tell tale sign did you expect to find, and did not?  And exactly when where they looking (there is some controversy over the dating of exodus, are they considering the entire range of possible dates?  Some seem to question if the Hebrews even existed at that time, which makes me feel the need to ask if they would even know what they where looking for in this time period to say that they where Jewish.  

I did find the following discussion (which I think is reasonable)  http://tinyurl.com/gvry6x2
One of the people involved in the discussion says that they have found evidence of Semitic and Asiatic slaves in Egypt at this time.  There are a number of other good points, as well (such as details within the story, which have shown to be consistent for the time).  I also learned some things about the numbers, and what is typically translated in the bible.

I have become skeptical when archeologist and historians make claims of what didn't occur or exist, because they haven't found evidence concerning the Bible.  Sometimes we do find evidence, and they have to eat crow.   People, places, sometimes even books of the Bible which are late dated, and then found in a cave.