thanks to the information.
and it seems to me that for now steem will go up but thin possibly up to 0.0005 bitcoin more and my prediction can go up to price 0.00025 bitcoin -0.0003bitcoin and can go down another.
yes we can tarding with arbitraging techniques with the help of another place of exchange. can we see at https://coinmarketcap.com/currencies/steem for artbitraging steem / btc, thanks