You do realise all those scientific theories are, at best and if perfect, only the simplest explaination for the observed data. Science does not and cannot state how something did occur, only the simplest way something could have occured, which is not the same thing in the slightest.
Putting faith in the scientific method to provide truth is no different than putting faith in any other belief. There's absolutely nothing wrong with doing so, we all have to believe something, but it is important to recognise the limitations of your beliefs.
If I'm understanding your argument, you're putting forward that science and religion are just two examples of human discourse and therefore hold equal validity? The difference here would be that science is what it is because it's the pursuit of verifying that our observations of the world are true (or not false) via experimentation in the context of theory, where as religion is just the upholding of long standing, unjustifiable beliefs.
I'll use two (stolen) examples.
1) Biologists say that DNA is the molecular basis for sexual reproduction. Each of us resembles our parents because we inherit a complement of their DNA.
2) The pope says that Jesus was born of a virgin and resurrected after death. He is the Son of God who created the universe in 6 days.
What are the chances that years of genetic research, that can demonstrably and repeatedly show the inherited links between generations is incorrect? We have the data that shows almost beyond doubt that DNA relates to inheritance. That is why I believe theory one - yes, I can't verify 100% that it is correct but the copious amounts of evidence available makes me think it's a pretty good bet.
What data do we have to support theory 2?
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