Earlier quoted context omitted.
Can we agree that 70 million people is not a negligible number?
Depends on what you're dealing with and the significance of it. 70 million is not a significant number of atoms of most things, for instance. The important question is the second one I posed. What is the acceptable level of error in an approximation?
We're dealing with people.
> and the significance of it.
People are generally pretty significant. 70 million people is very significant.
> 70 million is not a significant number of atoms of most things, for instance.
70 million people is a pretty significant number of people.
> The important question is the second one I posed. What is the acceptable level of error in an approximation?
Since you seem to have mistaken my rhetorical question for an actual question, I'll restate it as a statement: 70 million people is not an acceptable level of error in an approximation.