What I was referring to was (1) the direct observation that the universe is much older than 6,000 years, and (2) radioisotope dating of rocks and such demonstrating an age older than 6,000 years.
Yes, except that nobody can directly observe the past to know the age of the universe, it is all circumstantial, and radioisotope dating is not strictly physics (it was covered in chemistry); and once you apply it to rock ages because you must presume initial conditions to know the age, and once again nobody was around taking measurements at the beginning to know what the original composition of the rocks were.
The broader point I was trying to make is that evolution touches a lot less of science than evolutionists insist, and it appears evolutionists impose evolution on other hard science disciplines simply to gain greater credence when they stray from science into origin mythology.