Originally Posted by Tannhauser
Very few scientists ever use the phrase 'scientifically proven'.
That's because very rarely can we saw that we "proved" causation with 100% certaintly.
Even with things we know are true, the is a 1 chance in a 1000 or 1 chance in 10,000 that it isn't true.
Hence, as you mentioned, why repetition of research is key. Each time we repeat a study with similar and different populations and get similar results, we reduce the chances that the results are just by random chance.