[Aerozord]

All information is assumed because at some point you must assume your own observations and memories are accurate. Its why I have a saying, always possible I am right, and always possible I am wrong.

That being said you can certainly deduce things. using that sun example. We can observe the Earth rotating and are given no reason to believe this will stop thus it is logical to conclude the sun shall rise. While initially alot of science was inductive reasoning we eventually reached the causes of these phenomenon and could safely deduce consequences.