I didn't mean SBD depends on the BTC.. it depends on the dollar... and it always costs $1 (rather: between somewhere $0.8 and $1.1)... so when the BTC price get higher SBD will worth less BTC all the time.

STEEM value isn't dependant on SBD.. it depends on the community... STEEM is designed in a way that the price will keep on rising (in the long term) the more people use this platform. If people used Power Up often and never use the Power Down (Changing Steem Power to STEEM) feature. and also if the community posts were ones worth reading....

Currently STEEM price is higher than SBD and I expect it to get higher maybe even reach 10 or 20 SBD in the next three years... But in theory it can also get very much lower. no one can know the future.