Rockie wrote:evolution and relativity are just theories
They are just that, theories, and they happen to be a couple of the theories that have withstood testing and are currently accepted as 'best theory to fit the data from observations'.
But, they are still just theories. If you understood the scientific method, you too would realize that. In general, 'science' doesn't prove anything, the way it works is exactly the opposite. Theories are presented which provide some form of predictable outcomes when tested, then the tests are done. When testing shows the predictions to be correct, the theory remains a valid theory. When tests show otherwise, it is discarded. How strongly any given theory is supported by various folks in field, depends entirely on it's ability to predict outcomes.
Using your own example of relativity, it is a theory from which the math provides decent predictions of outcomes, but they aren't always exactly correct. In rather simple terms, we started off with newtonian physics as a means of explaining the reaction between bodies known as gravity. Nobody disputes the issue of wether or not there is those bodies interact in some way, plenty of dispute / pondering these days of what causes it. Newtonian physics provided the best mathematical method of explaining and understanding initially, and provided equations that would reliably predict trajectories, except there were some puzzling spots where the math and the observations didn't quite add up. Along came general relativity, which provided a mathematical model that fit the newtonian models, but also provided a basis for understanding and correctly predicting the outliers for those models. That reduced the number of outliers, didn't eliminate them. Later, special relativity provided some explanation for those outliers, and ultimately was accepted as the model with the best predictive power, but there are still outliers.
At some point in time, there will be new theories that displace relativity, this is a given. The reason for this is strait forward. Newtonian physics provides a mathematical model that well explains things at human comprehension scales in terms of dimension and time. Relativity provide more mathematical basis that provides models which work better at much larger scales and velocities. But both fall apart when you look at physical things at extremely small (atomic and subatomic particle) scales. In that realm, a whole different set of theories come about which provide better predictive power at small scale. Problem with those theories, the math falls apart when you try scale them up to large scales.
The holy grail in physics today, is to come up with a new mathematical model that provides correct predictions at both small, and large scale. When that does come about, relativity will get kicked to the curb right beside the aether and the flat earth. But, until that happens, they are the working models that provide predictions that fit the observed data better than any of the other theories that have been presented over the millenia.
I keep reading the comment 'the science is settled', but it just shows, those using that terminology dont understand the science at all. The science is NEVER settled, there is always a quest ongoing to come up with new / better models that provide more accurate predictions of outcomes. Science never proves anything, what it does, is disprove things until only a few working theories are left, those that provide the best outcome predictions. But as long as they dont provide correct outcome predictions in all cases, there will be a quest to find a better mathematical model. In physics, this process is ongoing.
The only folks that profess 'the science is settled' are those who believe, we know everything we need to know, and we shouldn't be investigating to find out just what is wrong with what current theories predict. And that's where it ceases to be a quest for knowledge, and starts to become 'faith'.
The same with climate change, very few wish to take in all the facts and not pick sides. Most humans cannot be uncommital on most things, therefore they need to be either / or, this is why politics is soo successful and why indoctrination into climate change and gun registration and bombing the middle east to smithereens is soo successful 
