Before the flood, it is clear that people experienced significantly longer lifespans. Even after the flood (Abraham/Moses), lifespans still hit 120.
We know that in the LXX translation, the ages are sometimes significantly different (higher).
Some have concluded that the system for tracking a "year" was different than we now track it. Others would say that, because these languages relied on words and letters (and not numbers), copyist errors were inevitable. Others say that, in its original context and time, giving long lifespans would imply the importance of an individual, not his actual lifespan.
Everyone who participates in SI believes in inerrancy. This means none of us challenge that the original documents were correct both in how they were written and how these numbers would have been decoded at that time.
Do you have any thoughts on this? Please comment.