Hive account@biophil we encourage you to do more research on the Steem Dollar. There can always remain a constant peg to 1 USD. If SBD spikes in demand, Hive account@steemit is expected to flood the market with additional SBD in order to keep the peg constant. If demand in SBD steeply falls thereafter, we trust in Hive account@steemit to buy back SBD to remain that peg.