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Technically speaking, isn't there an "unlimited" supply of a lot of tokens out there, including Steem?

Yeah technically speaking, but Steem has planned for inflation so that it will taper off over time. Dogecoin was designed not to be deflationary. There's a good article on it here: https://www.dailydot.com/business/dogecoin-no-mining-limit-infinite/

exactly, never can it reach a $1 not with a current supply of 109,799,737,211 but I should never say never.