The difference between northern thai food and southern Thai food is this: would you EVER eat "fresh" oysters in Nebraska? That's how it kinda breaks down northern Thai meat food is about herd animals and southern Thai food is all about the bounty of the sea. Herbs and fruit and be grown/dried and transported bout near everywhere cheaply without refrigeration. Chiang Mai is the Topeka and Bangkok is the....shit New york/Mobile/New Orleans/literally every major city on the damn coast of this country. Besides San Fran fuck San Fran.