Scientists never “prove” anything. This word has a specific application in mathematics, but in science what we do is demonstrate, with sufficient experiments, that a consensus exists and further evidence in support of an idea would be a waste of effort or funding since other pressing questions remain unanswered. When such an experimental consensus emerges the results will never one day be shown to be wrong. In the modern era of science (the past 400 years) all that happens is that a bigger truth emerges that enclosed the previous ideas and experiments in a deeper understanding.
On proof
