From the WHITEPAPER page 9!
"Steem Dollars are referred to with the symbol SBD, an acronym for Steem Blockchain Dollars. Creating SBD requires a combination of a reliable price feed, and rules to prevent abuse. Providing a reliable price
feed involves three factors: minimizing the impact of an incorrect feed, maximizing the cost of producing an incorrect feed, and minimizing the importance of timing."
Lmao - Who is the idiot now idiot, read the updated whitepaper smart-ass!