Coming up with an estimate, calling it a theory and being clear about the fact that it’s not a sure thing ? That’s perfectly fine.
Coming up with an estimate, calling it a theory and being clear about the fact that it’s not a sure thing ? That’s perfectly fine.
Setting aside if its perfectly fine or not, its not the same as extrapolating from actual data (and no its not “perfectly fine” to completely make up a number and pretend like its science.)