The Science of the Physical Creation folks, having given us a rainbow of God nonsense, now buckle down to tackle relativity. Are you excited? I’m excited.
They do just fine explaining the basics. It’s not easy to unpack the oddness of relativity in a few short pages, but they do their best, including a helpful (and rather cute) cartoon:
I was really hoping they’d tackle the speed of light in a young universe problem. See, in a young universe, we shouldn’t be seeing objects beyond around 10,000 light years (give or take a few millennia because God couldn’t be arsed to write down the actual date of creation). But we can spot galaxies and quasars and such that are billions of years old. Some of them we’ve even seen out to thirteen billion years and beyond. Everything we’ve found in the cosmos points to a very old universe indeed.
Young earth creationists have to explain that science away. Some of them claim the speed of light is slowing (c-decay). Unfortunately for them, the length of the year hasn’t changed since ancient times, as it would have if the speed of light was slowing. Even worse, if the speed of light was really that much faster in the past, “the earth would have melted during the creation week as a result of the extremely rapid radioactive decay.”