It's that innate curiosity that says, "it's been two days, there is no possible way that wet paint sign is still correct," despite the fact that the white sheen reflecting off the paint indicates a wet coat. So, you try it... And wouldn't you know it? It's wet! But you shouldn't believe anything without empirical evidence, considering the universe's star count, where our galaxy alone contains upwards of 400 billion stars, in a universe of an estimate 125 billion galaxies, you find yourself calculating a rough star count of 300 sextillion, or 300,000,000,000,000,000,000,000 stars (just over 4 billion). I guess it just boils down to the fact that it's a lot easier to test paint with a finger than the universal star count with a telescope and a calculator.