Starlight

The speed of light through different media is different. The speed of light through air is different from the speed of light through glass which is different from the speed of light through water. This is why it looks like your straw is broken in half. The constant c refers purely to the speed of light through a vacuum, so despite us being able to adjust the medium through which light is moving such that we get different speeds has no bearing on c, so your argument is still wrong. The constant c is actually a constant, especially as it pertains to starlight. Many people on here try to make sure people understand what they're talking about. Your comment made us wonder if you understood what c is, so they, quite helpfully, let you know where you're wrong. People correct misinformation regardless of whether it comes from a theologically inclined person, from an athiest, or even from a Phd. Someone pointed out where you were wrong, if you think that's BS, maybe you need to stop and consider why you're here. This is a debate forum, so no matter what you say, there is probably going to be someone who disagrees with you.