I've seen desert starts get called imbalanced, overpowered, or broken by many posters. This appears to be common wisdom. Why? Flood plains are no better than grassland unless they have wheat, desert hills are just hills, you're far less likely to have choppable forest, and actual desert tiles suck. Is it just because on lower difficulties the human player can reliably snag Petra? I find that on Immortal/Deity it's pretty much impossible to get Petra, and even attempting to means really f-ing up my teching, forcing me to the bottom of the tech tree when I need to be on the top. So is it just a difficulty level thing or what? Desert Folklore?