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I'll admit, I don't have a full understanding of how all of this works. I've been doing a bit of reading. Some of the things you say do make sense now.

Steemit is a work in progress, it's based on something called the BlockChain which is it based on something called CryptoCurrency.
The whole concept of Crypto-currency (Bit coin was the first) then later Block Chain and the uses it can be put to...is brand new.
Ten years or less I think.

Before high speed, and very cheap, and ubiquitous computers it would have been impossible.

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