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Sure, perhaps I should word that differently. It takes a certain amount of resource credits to perform functions on the steem blockchain, and it takes a certain amount of steem power (SP) to have 'enough' resource credits in order to perform said functions, so my question is, does the amount of SP required to perform the same function change with changes in activity/usage? IE will it ever require more or less SP to perform the same functions as it does right now?

Yes, it is dynamic according to usage.