So if a person can only see 10% of the evidence, how can they be sure that the other 90% doesn't contradict the 10%? If you think about your statement for a moment, you'll realize that you're making the data fit the theory, not proving the theory from the data.
So if a person can only see 10% of the evidence, how can they be sure that the other 90% doesn't contradict the 10%?
Because even though no one person could see all the evidence in one lifetime, other people *have* examined that evidence and verified that there's no contradiction.
If you think about your statement for a moment, you'll realize that you're making the data fit the theory, not proving the theory from the data.
Actually, if *you'll* "think about his statement for a moment", you'll realize that you're missing the point.