You are just simply begging the question. There are really no "scientific truths". Science makes it's best guess, continues to look for holes in the basic assumptions and then proceeds to build fantastic gadgets based on the "unproven" or "unprovable" current theory. That's just the way science works. Ask Newton what he would think about Einstein's theories of gravity and motion. He would be surprised but not astonished.
“There are really no “scientific truths”.” Is that true?