its not better technology that will replace bitcoin its better propaganda and consumer confidence keepers, some improvment i can see implemented in SC adjusting the fixed supply to a constant 3% economic growth stimulates (because economists think moderate monetary growth is good) increasing the tx fees, we need more miners for security, and teh proponents saying you the people, listen up, we have embraced bitcoin's blockchain technology its been improved and is safe for consumer adoption, were moving our national currency into the blockchain.
and in the blink of an eye Bitcoins tiny billion dollar market cap is absorbed and assimilated and usurped. Replaced not by better tech but by confidence spinning.

my man, I have to say you almost had me. I, for one second, had the impression I was conversing with a smart fellow. You should be ashamed of such deception.
your argument is GOVcoin, with inflationary features and corporate sponsors will kill Bitcoin?
well my friend, this is the beauty of cryptocurrency. the democracy of money, where people vote with their $ (or
BTC) and may the best man win.
let them have their attempt at GOVcoin and the free market will decide who the winner is.
I, for one, will have no part in it but I wish them luck. they will need lots of it.