Originally Posted by
coeruleum
Here's a case: the Industrial Revolution was started by people. If you feel like you have unlimited resources from your colonies and trading partners, but no resources in your home land, your home land makes new things out of them. If you get whatever tea they give you, you make overly-strong Turkish tea and drink it just for the caffeine. If you can get all the tea you want, you add bergamot from Italy and sugar from the West Indies and make Earl Grey. The Industrial Revolution happened because the British had all the resources in the world and needed them to become something British in order to keep trading. If all you're doing is shuffling tea to the West Indies and sugar to China, you're not going to be able to keep up an empire. Making tea is not a huge industrial enterprise but the creative aspect seems more obvious to me since it's something everyone's seen. Not everyone has seen cotton spun and things like that you read about in history textbooks, but the rule is just the same thing. If all you're doing is facilitating Egyptians trading cotton to Tibet in exchange for yak wool, you're not going to have an empire.