I agree that the majority of altcoins will be non-existent in 10 years time, probably less, but it doesn't mean you can't make some money in the meantime. Selecting the right altcoins now gives you an advantage, but need to stay alert to new innovations to ensure that your investments are still the right ones. The number one company in a designated field now is no guarantee that it will still be number one in the future. More often than not, the first to market is not the eventual winner. All that said, altcoins in general are here to stay, but the market will get increasingly competitive, and most of the current generation will invariably not make the cut.