No one is claiming that their speculative models and hypotheses are "truth". Before sufficient evidence is available, you start with a model and a hypothesis, w

No one is claiming that their speculative models and hypotheses are "truth". Before sufficient evidence is available, you start with a model and a hypothesis, which drives the search for evidence. Then it becomes falsifiable once you gather the evidence. I think you may have missed the explanation of science where the first step is to create a guess and that drives your experiments. As far as "not affecting your quality of life at all", people have been saying this about cutting edge science since forever. "Time can't be relative, it's just scientists playing with math. Besides, we'll never travel fast enough for it to matter and it doesn't affect our lives anyway." Yet time dilation is an important factor in your daily life if you ever used GPS.