So what would the perfect coin look like? What sort of technology, abilities, and specs would the perfect coin have to have to overthrow Bitcoin and all others and be the only crypto currency we could ever need?
I don't think there is a single perfect coin. It's just how the owner maintains the price of the coin so as not to fall and is still glimpsed by investors. If the reputation is lost, we can be sure that the coin will slowly disappear and will be replaced again with new, better coins.