There are already hundreds if not thousands of things you can do with bitcoins and practically nothing an altcoin can do that bitcoin can't.
Can the bitcoin network provide 6 confirmations of a transaction in 6 minutes? Nope, Dogecoin can. Can Bitcoin process 270 transactions per second? Nope, Litecoin can. In fact with the greedy bitcoin miners racing to find each block by adding as few transactions as possible it is not uncommon to wait more than 24 hours for a bitcoin transaction (without a hefty fee) to confirm.
The effect of this is the total reliance on centralized companies such as coinbase, circle, changetip amongst others. This totally defeats satoshi's vision of crypto.
Like I said, bitcoin will have to hardfork to reach the performance levels of even the slowest altcoins that came after it. The 3 year head start gave bitcoin the massive network effect, and this will be virtually impossible to surpass by another coin. But don't try to tell me that bitcoin is where it is because it is a superior performng coin. It is very slow.
You guys are lucky Charles Lee didn't create litecoin within 12 months of the bitcoin genesis block because things would be a lot different now.
You don't know what you are talking about. Faster blocks doesn't mean anything. If bitcoin forked to 1 minute block times, then a transaction with 10 confirmations would be just as secure as one with one confirmation how it is now. It's not the number of confirmations, its TIME.