If he created everything on the sixth day, why do we not find fossils in the say geological layers? Why do we not find humans in the same layer as T-Rex? Why do we not find giant american sloths in the same layer as the earliest ferns? We see distinct ecosystems and habitats in different layers and when we get ice core samples , and compare it to the microscopic layers in petrified woods within layers all dating to the same time we see similar chemical compositions that clue us into things like the atmosphere. We see different life forms in different layers. We see different chemical compositions in these layers. When we check these layers in America against the same layer in China we see the same indicators. For example, if we go back far enough we see reptiles but we don’t see mammals. We can go back so far that only tetrapods exists and there are no bipedal animals. We can go back through layers and see conifers, but no angiosperms. The layers line up with dozens of radiometric dating methods depending on which ones we need to narrow in on a date. If we go back we stop seeing tools being used. We see no bones with tool made scars or tool scarring patterns on it. Then we begin seeing some and see them get more and more complex.
That’s in direct contradiction to the unscientific notion that everything was created within literal six days of one another.