What is minimum blocktime BFT can achieve?
Can developers say on this?
30s per block. 1block for confirmation
It's worth highlighting that only 1 confirmation is required for an IMMUTABLE transaction. This means you don't have to wait i.e. 10 confirmations, just 1 is needed.
This is one of the great things about Semux and BTF consensus!
Oh i wasn't aware of it.
So it is not possible to make double payments or so.
But probably exchanges would ask more than 1 confirmation when it listed

Woww! But is 30 sec really the fastest block time or could it match ETH's 12 second or whatever?
12 seconds isn't so great if it's clogged with cryptokitties

Bitcoin is 10 minutes.. I'd say 30 seconds is fast enough if you can get 100's of tps like Semux.
And you only need 1 confirmation, not 10 so you wait 30 seconds and that's it

Bitcoin needs 10 min * required confirms = i.e 60 min!
The speed of transactions is important, but the fees you have to pay are equally important. Bitcoin's fees have been very high for a while now. If a transaction's fees are above $10 it reduces the number of use cases a coin can have. Small payments are cheap for semux, and unfeasible for bitcoin.