make a fork with proposed changes. if it works, being the change to regular network. sort of like a testnet
Discussion
Don't need to. Others already are going to make it reality.
I don't think others will compete against Bitcoin successfully, due to bitcoins network effect. but if I'm wrong, it'll still take years, as a tug of war. plenty of time to switch to the better coin. 15 years in, and no need to change yet. if there's a better coin, it'll probably be a 5 year window of time to switch to that other coin.
Huh? I am talking about building on bitcoin, not against it. You high?